Home / 85,582,565.28-128,435,140.64-36,432,877.60

Finding the Fourth Proportional to 85,582,565.28, 128,435,140.64 and 36,432,877.60

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Solution

The fourth proportional to 85,582,565.28, 128,435,140.64 and 36,432,877.60 is: 54,675,408.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,582,565.28 : 128,435,140.64 = 36,432,877.60 : x
  2. Step 2: Convert to fraction form
    85,582,565.28/128,435,140.64 = 36,432,877.60/x
  3. Step 3: Cross multiply
    85,582,565.28x = 128,435,140.64 × 36,432,877.60
  4. Step 4: Simplify right side
    85,582,565.28x = 4,679,261,758,475,906
  5. Step 5: Solve for x
    x = 4,679,261,758,475,906/85,582,565.28
  6. Step 6: Final answer
    x = 54,675,408.98

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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.