Home / 187,174,927.15-280,787,940.65-77,974,560.68

Finding the Fourth Proportional to 187,174,927.15, 280,787,940.65 and 77,974,560.68

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Solution

The fourth proportional to 187,174,927.15, 280,787,940.65 and 77,974,560.68 is: 116,972,484.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,174,927.15 : 280,787,940.65 = 77,974,560.68 : x
  2. Step 2: Convert to fraction form
    187,174,927.15/280,787,940.65 = 77,974,560.68/x
  3. Step 3: Cross multiply
    187,174,927.15x = 280,787,940.65 × 77,974,560.68
  4. Step 4: Simplify right side
    187,174,927.15x = 21,894,316,315,216,656
  5. Step 5: Solve for x
    x = 21,894,316,315,216,656/187,174,927.15
  6. Step 6: Final answer
    x = 116,972,484.77

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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.