Home / 28,909,024.20-39,894,510.42-15,856,389.36

Finding the Fourth Proportional to 28,909,024.20, 39,894,510.42 and 15,856,389.36

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Solution

The fourth proportional to 28,909,024.20, 39,894,510.42 and 15,856,389.36 is: 21,881,848.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,909,024.20 : 39,894,510.42 = 15,856,389.36 : x
  2. Step 2: Convert to fraction form
    28,909,024.20/39,894,510.42 = 15,856,389.36/x
  3. Step 3: Cross multiply
    28,909,024.20x = 39,894,510.42 × 15,856,389.36
  4. Step 4: Simplify right side
    28,909,024.20x = 632,582,890,546,097.12
  5. Step 5: Solve for x
    x = 632,582,890,546,097.12/28,909,024.20
  6. Step 6: Final answer
    x = 21,881,848.59

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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.