Home / 21,162,746.37-31,732,112.93-19,357,224.78

Finding the Fourth Proportional to 21,162,746.37, 31,732,112.93 and 19,357,224.78

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Solution

The fourth proportional to 21,162,746.37, 31,732,112.93 and 19,357,224.78 is: 29,024,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162,746.37 : 31,732,112.93 = 19,357,224.78 : x
  2. Step 2: Convert to fraction form
    21,162,746.37/31,732,112.93 = 19,357,224.78/x
  3. Step 3: Cross multiply
    21,162,746.37x = 31,732,112.93 × 19,357,224.78
  4. Step 4: Simplify right side
    21,162,746.37x = 614,245,642,861,448.12
  5. Step 5: Solve for x
    x = 614,245,642,861,448.12/21,162,746.37
  6. Step 6: Final answer
    x = 29,024,854.90

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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.