Home / 20,665,258.64-31,017,041.40-10,437,301.28

Finding the Fourth Proportional to 20,665,258.64, 31,017,041.40 and 10,437,301.28

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Solution

The fourth proportional to 20,665,258.64, 31,017,041.40 and 10,437,301.28 is: 15,665,625.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,665,258.64 : 31,017,041.40 = 10,437,301.28 : x
  2. Step 2: Convert to fraction form
    20,665,258.64/31,017,041.40 = 10,437,301.28/x
  3. Step 3: Cross multiply
    20,665,258.64x = 31,017,041.40 × 10,437,301.28
  4. Step 4: Simplify right side
    20,665,258.64x = 323,734,205,906,032.94
  5. Step 5: Solve for x
    x = 323,734,205,906,032.94/20,665,258.64
  6. Step 6: Final answer
    x = 15,665,625.65

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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.