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Finding the Fourth Proportional to 580,656,009.60, 870,984,014.40 and 387,164,246.40

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Solution

The fourth proportional to 580,656,009.60, 870,984,014.40 and 387,164,246.40 is: 580,746,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,656,009.60 : 870,984,014.40 = 387,164,246.40 : x
  2. Step 2: Convert to fraction form
    580,656,009.60/870,984,014.40 = 387,164,246.40/x
  3. Step 3: Cross multiply
    580,656,009.60x = 870,984,014.40 × 387,164,246.40
  4. Step 4: Simplify right side
    580,656,009.60x = 337,213,869,561,622,720
  5. Step 5: Solve for x
    x = 337,213,869,561,622,720/580,656,009.60
  6. Step 6: Final answer
    x = 580,746,369.60

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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.