Home / 15,458,931.20-23,169,734.40-7,881,996.80

Finding the Fourth Proportional to 15,458,931.20, 23,169,734.40 and 7,881,996.80

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Solution

The fourth proportional to 15,458,931.20, 23,169,734.40 and 7,881,996.80 is: 11,813,479.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458,931.20 : 23,169,734.40 = 7,881,996.80 : x
  2. Step 2: Convert to fraction form
    15,458,931.20/23,169,734.40 = 7,881,996.80/x
  3. Step 3: Cross multiply
    15,458,931.20x = 23,169,734.40 × 7,881,996.80
  4. Step 4: Simplify right side
    15,458,931.20x = 182,623,772,397,649.91
  5. Step 5: Solve for x
    x = 182,623,772,397,649.91/15,458,931.20
  6. Step 6: Final answer
    x = 11,813,479.86

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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.