Home / 437,457,801.60-656,186,702.40-430,655,356.80

Finding the Fourth Proportional to 437,457,801.60, 656,186,702.40 and 430,655,356.80

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Solution

The fourth proportional to 437,457,801.60, 656,186,702.40 and 430,655,356.80 is: 645,983,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,457,801.60 : 656,186,702.40 = 430,655,356.80 : x
  2. Step 2: Convert to fraction form
    437,457,801.60/656,186,702.40 = 430,655,356.80/x
  3. Step 3: Cross multiply
    437,457,801.60x = 656,186,702.40 × 430,655,356.80
  4. Step 4: Simplify right side
    437,457,801.60x = 282,590,318,449,487,424
  5. Step 5: Solve for x
    x = 282,590,318,449,487,424/437,457,801.60
  6. Step 6: Final answer
    x = 645,983,035.20

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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.