Home / 109,154,020.20-163,731,030.30-72,325,158.90

Finding the Fourth Proportional to 109,154,020.20, 163,731,030.30 and 72,325,158.90

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Solution

The fourth proportional to 109,154,020.20, 163,731,030.30 and 72,325,158.90 is: 108,487,738.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,154,020.20 : 163,731,030.30 = 72,325,158.90 : x
  2. Step 2: Convert to fraction form
    109,154,020.20/163,731,030.30 = 72,325,158.90/x
  3. Step 3: Cross multiply
    109,154,020.20x = 163,731,030.30 × 72,325,158.90
  4. Step 4: Simplify right side
    109,154,020.20x = 11,841,872,783,308,216
  5. Step 5: Solve for x
    x = 11,841,872,783,308,216/109,154,020.20
  6. Step 6: Final answer
    x = 108,487,738.35

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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.