Home / 21,407,363.40-32,115,948.30-9,278,862.60

Finding the Fourth Proportional to 21,407,363.40, 32,115,948.30 and 9,278,862.60

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Solution

The fourth proportional to 21,407,363.40, 32,115,948.30 and 9,278,862.60 is: 13,920,419.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407,363.40 : 32,115,948.30 = 9,278,862.60 : x
  2. Step 2: Convert to fraction form
    21,407,363.40/32,115,948.30 = 9,278,862.60/x
  3. Step 3: Cross multiply
    21,407,363.40x = 32,115,948.30 × 9,278,862.60
  4. Step 4: Simplify right side
    21,407,363.40x = 297,999,471,544,403.56
  5. Step 5: Solve for x
    x = 297,999,471,544,403.56/21,407,363.40
  6. Step 6: Final answer
    x = 13,920,419.16

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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.