Home / 425,218,156.60-637,827,234.90-417,155,999.80

Finding the Fourth Proportional to 425,218,156.60, 637,827,234.90 and 417,155,999.80

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Solution

The fourth proportional to 425,218,156.60, 637,827,234.90 and 417,155,999.80 is: 625,733,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,218,156.60 : 637,827,234.90 = 417,155,999.80 : x
  2. Step 2: Convert to fraction form
    425,218,156.60/637,827,234.90 = 417,155,999.80/x
  3. Step 3: Cross multiply
    425,218,156.60x = 637,827,234.90 × 417,155,999.80
  4. Step 4: Simplify right side
    425,218,156.60x = 266,073,457,874,378,944
  5. Step 5: Solve for x
    x = 266,073,457,874,378,944/425,218,156.60
  6. Step 6: Final answer
    x = 625,733,999.70

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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.