Home / 82,187,777.40-123,281,666.10-51,576,775.80

Finding the Fourth Proportional to 82,187,777.40, 123,281,666.10 and 51,576,775.80

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Solution

The fourth proportional to 82,187,777.40, 123,281,666.10 and 51,576,775.80 is: 77,365,163.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,187,777.40 : 123,281,666.10 = 51,576,775.80 : x
  2. Step 2: Convert to fraction form
    82,187,777.40/123,281,666.10 = 51,576,775.80/x
  3. Step 3: Cross multiply
    82,187,777.40x = 123,281,666.10 × 51,576,775.80
  4. Step 4: Simplify right side
    82,187,777.40x = 6,358,470,852,690,160
  5. Step 5: Solve for x
    x = 6,358,470,852,690,160/82,187,777.40
  6. Step 6: Final answer
    x = 77,365,163.70

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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.