Home / 21,216,597.60-31,750,246.80-19,425,007.20

Finding the Fourth Proportional to 21,216,597.60, 31,750,246.80 and 19,425,007.20

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Solution

The fourth proportional to 21,216,597.60, 31,750,246.80 and 19,425,007.20 is: 29,069,164.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,216,597.60 : 31,750,246.80 = 19,425,007.20 : x
  2. Step 2: Convert to fraction form
    21,216,597.60/31,750,246.80 = 19,425,007.20/x
  3. Step 3: Cross multiply
    21,216,597.60x = 31,750,246.80 × 19,425,007.20
  4. Step 4: Simplify right side
    21,216,597.60x = 616,748,772,691,777
  5. Step 5: Solve for x
    x = 616,748,772,691,777/21,216,597.60
  6. Step 6: Final answer
    x = 29,069,164.83

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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.