Home / 517,738,705.20-776,608,057.80-149,272,945.20

Finding the Fourth Proportional to 517,738,705.20, 776,608,057.80 and 149,272,945.20

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Solution

The fourth proportional to 517,738,705.20, 776,608,057.80 and 149,272,945.20 is: 223,909,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,738,705.20 : 776,608,057.80 = 149,272,945.20 : x
  2. Step 2: Convert to fraction form
    517,738,705.20/776,608,057.80 = 149,272,945.20/x
  3. Step 3: Cross multiply
    517,738,705.20x = 776,608,057.80 × 149,272,945.20
  4. Step 4: Simplify right side
    517,738,705.20x = 115,926,572,053,857,824
  5. Step 5: Solve for x
    x = 115,926,572,053,857,824/517,738,705.20
  6. Step 6: Final answer
    x = 223,909,417.80

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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.