Home / 459,003,360.80-687,576,068.40-285,948,999.20

Finding the Fourth Proportional to 459,003,360.80, 687,576,068.40 and 285,948,999.20

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Solution

The fourth proportional to 459,003,360.80, 687,576,068.40 and 285,948,999.20 is: 428,344,769.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,003,360.80 : 687,576,068.40 = 285,948,999.20 : x
  2. Step 2: Convert to fraction form
    459,003,360.80/687,576,068.40 = 285,948,999.20/x
  3. Step 3: Cross multiply
    459,003,360.80x = 687,576,068.40 × 285,948,999.20
  4. Step 4: Simplify right side
    459,003,360.80x = 196,611,688,632,850,720
  5. Step 5: Solve for x
    x = 196,611,688,632,850,720/459,003,360.80
  6. Step 6: Final answer
    x = 428,344,769.18

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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.