Home / 108,811,693.32-163,281,312.90-78,073,145.88

Finding the Fourth Proportional to 108,811,693.32, 163,281,312.90 and 78,073,145.88

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Solution

The fourth proportional to 108,811,693.32, 163,281,312.90 and 78,073,145.88 is: 117,155,476.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,811,693.32 : 163,281,312.90 = 78,073,145.88 : x
  2. Step 2: Convert to fraction form
    108,811,693.32/163,281,312.90 = 78,073,145.88/x
  3. Step 3: Cross multiply
    108,811,693.32x = 163,281,312.90 × 78,073,145.88
  4. Step 4: Simplify right side
    108,811,693.32x = 12,747,885,761,519,626
  5. Step 5: Solve for x
    x = 12,747,885,761,519,626/108,811,693.32
  6. Step 6: Final answer
    x = 117,155,476.33

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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.