Home / 90,438,582.70-135,657,874.05-56,001,205.90

Finding the Fourth Proportional to 90,438,582.70, 135,657,874.05 and 56,001,205.90

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Solution

The fourth proportional to 90,438,582.70, 135,657,874.05 and 56,001,205.90 is: 84,001,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,438,582.70 : 135,657,874.05 = 56,001,205.90 : x
  2. Step 2: Convert to fraction form
    90,438,582.70/135,657,874.05 = 56,001,205.90/x
  3. Step 3: Cross multiply
    90,438,582.70x = 135,657,874.05 × 56,001,205.90
  4. Step 4: Simplify right side
    90,438,582.70x = 7,597,004,536,630,317
  5. Step 5: Solve for x
    x = 7,597,004,536,630,317/90,438,582.70
  6. Step 6: Final answer
    x = 84,001,808.85

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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.