Home / 21,216,585.60-31,750,228.80-19,424,995.20

Finding the Fourth Proportional to 21,216,585.60, 31,750,228.80 and 19,424,995.20

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Solution

The fourth proportional to 21,216,585.60, 31,750,228.80 and 19,424,995.20 is: 29,069,146.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,216,585.60 : 31,750,228.80 = 19,424,995.20 : x
  2. Step 2: Convert to fraction form
    21,216,585.60/31,750,228.80 = 19,424,995.20/x
  3. Step 3: Cross multiply
    21,216,585.60x = 31,750,228.80 × 19,424,995.20
  4. Step 4: Simplify right side
    21,216,585.60x = 616,748,042,038,901.75
  5. Step 5: Solve for x
    x = 616,748,042,038,901.75/21,216,585.60
  6. Step 6: Final answer
    x = 29,069,146.83

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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.