Home / 505,488,839.70-758,233,259.55-423,859,502.10

Finding the Fourth Proportional to 505,488,839.70, 758,233,259.55 and 423,859,502.10

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Solution

The fourth proportional to 505,488,839.70, 758,233,259.55 and 423,859,502.10 is: 635,789,253.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,488,839.70 : 758,233,259.55 = 423,859,502.10 : x
  2. Step 2: Convert to fraction form
    505,488,839.70/758,233,259.55 = 423,859,502.10/x
  3. Step 3: Cross multiply
    505,488,839.70x = 758,233,259.55 × 423,859,502.10
  4. Step 4: Simplify right side
    505,488,839.70x = 321,384,371,868,523,072
  5. Step 5: Solve for x
    x = 321,384,371,868,523,072/505,488,839.70
  6. Step 6: Final answer
    x = 635,789,253.15

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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.