Home / 145,514,906.70-218,272,360.05-99,598,404.30

Finding the Fourth Proportional to 145,514,906.70, 218,272,360.05 and 99,598,404.30

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Solution

The fourth proportional to 145,514,906.70, 218,272,360.05 and 99,598,404.30 is: 149,397,606.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,514,906.70 : 218,272,360.05 = 99,598,404.30 : x
  2. Step 2: Convert to fraction form
    145,514,906.70/218,272,360.05 = 99,598,404.30/x
  3. Step 3: Cross multiply
    145,514,906.70x = 218,272,360.05 × 99,598,404.30
  4. Step 4: Simplify right side
    145,514,906.70x = 21,739,578,763,775,068
  5. Step 5: Solve for x
    x = 21,739,578,763,775,068/145,514,906.70
  6. Step 6: Final answer
    x = 149,397,606.45

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Similar ratio
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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.