Home / 787,368,039.80-1,086,546,835.44-434,936,445.28

Finding the Fourth Proportional to 787,368,039.80, 1,086,546,835.44 and 434,936,445.28

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Solution

The fourth proportional to 787,368,039.80, 1,086,546,835.44 and 434,936,445.28 is: 600,200,661.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,368,039.80 : 1,086,546,835.44 = 434,936,445.28 : x
  2. Step 2: Convert to fraction form
    787,368,039.80/1,086,546,835.44 = 434,936,445.28/x
  3. Step 3: Cross multiply
    787,368,039.80x = 1,086,546,835.44 × 434,936,445.28
  4. Step 4: Simplify right side
    787,368,039.80x = 472,578,818,236,506,688
  5. Step 5: Solve for x
    x = 472,578,818,236,506,688/787,368,039.80
  6. Step 6: Final answer
    x = 600,200,661.38

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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.