Home / 99,840,856.86-137,785,704.75-55,788,925.05

Finding the Fourth Proportional to 99,840,856.86, 137,785,704.75 and 55,788,925.05

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Solution

The fourth proportional to 99,840,856.86, 137,785,704.75 and 55,788,925.05 is: 76,991,690.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,840,856.86 : 137,785,704.75 = 55,788,925.05 : x
  2. Step 2: Convert to fraction form
    99,840,856.86/137,785,704.75 = 55,788,925.05/x
  3. Step 3: Cross multiply
    99,840,856.86x = 137,785,704.75 × 55,788,925.05
  4. Step 4: Simplify right side
    99,840,856.86x = 7,686,916,355,259,179
  5. Step 5: Solve for x
    x = 7,686,916,355,259,179/99,840,856.86
  6. Step 6: Final answer
    x = 76,991,690.55

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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.