Home / 19,918,101.40-29,905,145.70-15,663,074.20

Finding the Fourth Proportional to 19,918,101.40, 29,905,145.70 and 15,663,074.20

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Solution

The fourth proportional to 19,918,101.40, 29,905,145.70 and 15,663,074.20 is: 23,516,624.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918,101.40 : 29,905,145.70 = 15,663,074.20 : x
  2. Step 2: Convert to fraction form
    19,918,101.40/29,905,145.70 = 15,663,074.20/x
  3. Step 3: Cross multiply
    19,918,101.40x = 29,905,145.70 × 15,663,074.20
  4. Step 4: Simplify right side
    19,918,101.40x = 468,406,516,060,910.88
  5. Step 5: Solve for x
    x = 468,406,516,060,910.88/19,918,101.40
  6. Step 6: Final answer
    x = 23,516,624.74

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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.