Home / 12,781,472.64-17,638,552.40-7,274,577.52

Finding the Fourth Proportional to 12,781,472.64, 17,638,552.40 and 7,274,577.52

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Solution

The fourth proportional to 12,781,472.64, 17,638,552.40 and 7,274,577.52 is: 10,038,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,472.64 : 17,638,552.40 = 7,274,577.52 : x
  2. Step 2: Convert to fraction form
    12,781,472.64/17,638,552.40 = 7,274,577.52/x
  3. Step 3: Cross multiply
    12,781,472.64x = 17,638,552.40 × 7,274,577.52
  4. Step 4: Simplify right side
    12,781,472.64x = 128,313,016,774,382.03
  5. Step 5: Solve for x
    x = 128,313,016,774,382.03/12,781,472.64
  6. Step 6: Final answer
    x = 10,038,985.36

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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.