Home / 90,438,496.20-135,657,744.30-56,001,119.40

Finding the Fourth Proportional to 90,438,496.20, 135,657,744.30 and 56,001,119.40

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Solution

The fourth proportional to 90,438,496.20, 135,657,744.30 and 56,001,119.40 is: 84,001,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,438,496.20 : 135,657,744.30 = 56,001,119.40 : x
  2. Step 2: Convert to fraction form
    90,438,496.20/135,657,744.30 = 56,001,119.40/x
  3. Step 3: Cross multiply
    90,438,496.20x = 135,657,744.30 × 56,001,119.40
  4. Step 4: Simplify right side
    90,438,496.20x = 7,596,985,536,078,970
  5. Step 5: Solve for x
    x = 7,596,985,536,078,970/90,438,496.20
  6. Step 6: Final answer
    x = 84,001,679.10

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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.