Home / 42,127,971.80-63,156,965.70-17,885,514.20

Finding the Fourth Proportional to 42,127,971.80, 63,156,965.70 and 17,885,514.20

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Solution

The fourth proportional to 42,127,971.80, 63,156,965.70 and 17,885,514.20 is: 26,813,415.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,127,971.80 : 63,156,965.70 = 17,885,514.20 : x
  2. Step 2: Convert to fraction form
    42,127,971.80/63,156,965.70 = 17,885,514.20/x
  3. Step 3: Cross multiply
    42,127,971.80x = 63,156,965.70 × 17,885,514.20
  4. Step 4: Simplify right side
    42,127,971.80x = 1,129,594,806,856,263
  5. Step 5: Solve for x
    x = 1,129,594,806,856,263/42,127,971.80
  6. Step 6: Final answer
    x = 26,813,415.38

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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.