Home / 77,485,974.53-106,930,641.06-42,678,666.68

Finding the Fourth Proportional to 77,485,974.53, 106,930,641.06 and 42,678,666.68

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Solution

The fourth proportional to 77,485,974.53, 106,930,641.06 and 42,678,666.68 is: 58,896,557.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,485,974.53 : 106,930,641.06 = 42,678,666.68 : x
  2. Step 2: Convert to fraction form
    77,485,974.53/106,930,641.06 = 42,678,666.68/x
  3. Step 3: Cross multiply
    77,485,974.53x = 106,930,641.06 × 42,678,666.68
  4. Step 4: Simplify right side
    77,485,974.53x = 4,563,657,187,678,462
  5. Step 5: Solve for x
    x = 4,563,657,187,678,462/77,485,974.53
  6. Step 6: Final answer
    x = 58,896,557.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.