Home / 70,121,381.80-105,193,375.04-21,599,188.36

Finding the Fourth Proportional to 70,121,381.80, 105,193,375.04 and 21,599,188.36

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Solution

The fourth proportional to 70,121,381.80, 105,193,375.04 and 21,599,188.36 is: 32,402,263.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,121,381.80 : 105,193,375.04 = 21,599,188.36 : x
  2. Step 2: Convert to fraction form
    70,121,381.80/105,193,375.04 = 21,599,188.36/x
  3. Step 3: Cross multiply
    70,121,381.80x = 105,193,375.04 × 21,599,188.36
  4. Step 4: Simplify right side
    70,121,381.80x = 2,272,091,521,713,082.50
  5. Step 5: Solve for x
    x = 2,272,091,521,713,082.50/70,121,381.80
  6. Step 6: Final answer
    x = 32,402,263.95

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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.