Home / 21,335,253.36-31,989,920.39-8,365,866.47

Finding the Fourth Proportional to 21,335,253.36, 31,989,920.39 and 8,365,866.47

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Solution

The fourth proportional to 21,335,253.36, 31,989,920.39 and 8,365,866.47 is: 12,543,718.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,253.36 : 31,989,920.39 = 8,365,866.47 : x
  2. Step 2: Convert to fraction form
    21,335,253.36/31,989,920.39 = 8,365,866.47/x
  3. Step 3: Cross multiply
    21,335,253.36x = 31,989,920.39 × 8,365,866.47
  4. Step 4: Simplify right side
    21,335,253.36x = 267,623,402,368,670.31
  5. Step 5: Solve for x
    x = 267,623,402,368,670.31/21,335,253.36
  6. Step 6: Final answer
    x = 12,543,718.04

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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.