Home / 910,144,059.88-1,255,997,989.86-513,750,486.76

Finding the Fourth Proportional to 910,144,059.88, 1,255,997,989.86 and 513,750,486.76

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Solution

The fourth proportional to 910,144,059.88, 1,255,997,989.86 and 513,750,486.76 is: 708,975,212.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,144,059.88 : 1,255,997,989.86 = 513,750,486.76 : x
  2. Step 2: Convert to fraction form
    910,144,059.88/1,255,997,989.86 = 513,750,486.76/x
  3. Step 3: Cross multiply
    910,144,059.88x = 1,255,997,989.86 × 513,750,486.76
  4. Step 4: Simplify right side
    910,144,059.88x = 645,269,578,660,156,416
  5. Step 5: Solve for x
    x = 645,269,578,660,156,416/910,144,059.88
  6. Step 6: Final answer
    x = 708,975,212.94

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Half scale
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Double scale
Find fourth proportional to 910,144,060.88, 1,255,997,991.24 and 513,750,487.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.