Home / 103,458,840.30-155,188,260.45-91,813,502.70

Finding the Fourth Proportional to 103,458,840.30, 155,188,260.45 and 91,813,502.70

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Solution

The fourth proportional to 103,458,840.30, 155,188,260.45 and 91,813,502.70 is: 137,720,254.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,458,840.30 : 155,188,260.45 = 91,813,502.70 : x
  2. Step 2: Convert to fraction form
    103,458,840.30/155,188,260.45 = 91,813,502.70/x
  3. Step 3: Cross multiply
    103,458,840.30x = 155,188,260.45 × 91,813,502.70
  4. Step 4: Simplify right side
    103,458,840.30x = 14,248,377,769,834,378
  5. Step 5: Solve for x
    x = 14,248,377,769,834,378/103,458,840.30
  6. Step 6: Final answer
    x = 137,720,254.05

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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.