Home / 21,069,695.15-31,604,583.38-8,121,943.07

Finding the Fourth Proportional to 21,069,695.15, 31,604,583.38 and 8,121,943.07

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Solution

The fourth proportional to 21,069,695.15, 31,604,583.38 and 8,121,943.07 is: 12,182,930.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,695.15 : 31,604,583.38 = 8,121,943.07 : x
  2. Step 2: Convert to fraction form
    21,069,695.15/31,604,583.38 = 8,121,943.07/x
  3. Step 3: Cross multiply
    21,069,695.15x = 31,604,583.38 × 8,121,943.07
  4. Step 4: Simplify right side
    21,069,695.15x = 256,690,626,963,428.19
  5. Step 5: Solve for x
    x = 256,690,626,963,428.19/21,069,695.15
  6. Step 6: Final answer
    x = 12,182,930.28

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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.