Home / 19,116,165.40-28,627,008.90-12,691,634.20

Finding the Fourth Proportional to 19,116,165.40, 28,627,008.90 and 12,691,634.20

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Solution

The fourth proportional to 19,116,165.40, 28,627,008.90 and 12,691,634.20 is: 19,006,088.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116,165.40 : 28,627,008.90 = 12,691,634.20 : x
  2. Step 2: Convert to fraction form
    19,116,165.40/28,627,008.90 = 12,691,634.20/x
  3. Step 3: Cross multiply
    19,116,165.40x = 28,627,008.90 × 12,691,634.20
  4. Step 4: Simplify right side
    19,116,165.40x = 363,323,525,198,944.31
  5. Step 5: Solve for x
    x = 363,323,525,198,944.31/19,116,165.40
  6. Step 6: Final answer
    x = 19,006,088.18

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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.