Home / 520,620,535.06-780,935,379.64-132,443,777.14

Finding the Fourth Proportional to 520,620,535.06, 780,935,379.64 and 132,443,777.14

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Solution

The fourth proportional to 520,620,535.06, 780,935,379.64 and 132,443,777.14 is: 198,666,830.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,620,535.06 : 780,935,379.64 = 132,443,777.14 : x
  2. Step 2: Convert to fraction form
    520,620,535.06/780,935,379.64 = 132,443,777.14/x
  3. Step 3: Cross multiply
    520,620,535.06x = 780,935,379.64 × 132,443,777.14
  4. Step 4: Simplify right side
    520,620,535.06x = 103,430,031,381,781,456
  5. Step 5: Solve for x
    x = 103,430,031,381,781,456/520,620,535.06
  6. Step 6: Final answer
    x = 198,666,830.09

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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.