Home / 82,234,710.76-123,264,836.73-38,478,603.51

Finding the Fourth Proportional to 82,234,710.76, 123,264,836.73 and 38,478,603.51

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Solution

The fourth proportional to 82,234,710.76, 123,264,836.73 and 38,478,603.51 is: 57,677,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,234,710.76 : 123,264,836.73 = 38,478,603.51 : x
  2. Step 2: Convert to fraction form
    82,234,710.76/123,264,836.73 = 38,478,603.51/x
  3. Step 3: Cross multiply
    82,234,710.76x = 123,264,836.73 × 38,478,603.51
  4. Step 4: Simplify right side
    82,234,710.76x = 4,743,058,778,642,231
  5. Step 5: Solve for x
    x = 4,743,058,778,642,231/82,234,710.76
  6. Step 6: Final answer
    x = 57,677,089.57

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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.