Home / 1,147,428,627.90-1,721,142,941.85-371,631,056.10

Finding the Fourth Proportional to 1,147,428,627.90, 1,721,142,941.85 and 371,631,056.10

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Solution

The fourth proportional to 1,147,428,627.90, 1,721,142,941.85 and 371,631,056.10 is: 557,446,584.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,428,627.90 : 1,721,142,941.85 = 371,631,056.10 : x
  2. Step 2: Convert to fraction form
    1,147,428,627.90/1,721,142,941.85 = 371,631,056.10/x
  3. Step 3: Cross multiply
    1,147,428,627.90x = 1,721,142,941.85 × 371,631,056.10
  4. Step 4: Simplify right side
    1,147,428,627.90x = 639,630,169,178,776,448
  5. Step 5: Solve for x
    x = 639,630,169,178,776,448/1,147,428,627.90
  6. Step 6: Final answer
    x = 557,446,584.15

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.