Home / 15,533,071.20-21,435,737.76-8,657,989.20

Finding the Fourth Proportional to 15,533,071.20, 21,435,737.76 and 8,657,989.20

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Solution

The fourth proportional to 15,533,071.20, 21,435,737.76 and 8,657,989.20 is: 11,948,080.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533,071.20 : 21,435,737.76 = 8,657,989.20 : x
  2. Step 2: Convert to fraction form
    15,533,071.20/21,435,737.76 = 8,657,989.20/x
  3. Step 3: Cross multiply
    15,533,071.20x = 21,435,737.76 × 8,657,989.20
  4. Step 4: Simplify right side
    15,533,071.20x = 185,590,386,020,112.19
  5. Step 5: Solve for x
    x = 185,590,386,020,112.19/15,533,071.20
  6. Step 6: Final answer
    x = 11,948,080.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.