Home / 930,812,145.96-1,284,529,425.75-513,139,377.90

Finding the Fourth Proportional to 930,812,145.96, 1,284,529,425.75 and 513,139,377.90

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Solution

The fourth proportional to 930,812,145.96, 1,284,529,425.75 and 513,139,377.90 is: 708,137,117.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,812,145.96 : 1,284,529,425.75 = 513,139,377.90 : x
  2. Step 2: Convert to fraction form
    930,812,145.96/1,284,529,425.75 = 513,139,377.90/x
  3. Step 3: Cross multiply
    930,812,145.96x = 1,284,529,425.75 × 513,139,377.90
  4. Step 4: Simplify right side
    930,812,145.96x = 659,142,630,423,599,232
  5. Step 5: Solve for x
    x = 659,142,630,423,599,232/930,812,145.96
  6. Step 6: Final answer
    x = 708,137,117.98

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Double scale
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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.