Home / 19,897,513.20-29,862,016.20-7,772,785.20

Finding the Fourth Proportional to 19,897,513.20, 29,862,016.20 and 7,772,785.20

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Solution

The fourth proportional to 19,897,513.20, 29,862,016.20 and 7,772,785.20 is: 11,665,328.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,897,513.20 : 29,862,016.20 = 7,772,785.20 : x
  2. Step 2: Convert to fraction form
    19,897,513.20/29,862,016.20 = 7,772,785.20/x
  3. Step 3: Cross multiply
    19,897,513.20x = 29,862,016.20 × 7,772,785.20
  4. Step 4: Simplify right side
    19,897,513.20x = 232,111,037,561,520.25
  5. Step 5: Solve for x
    x = 232,111,037,561,520.25/19,897,513.20
  6. Step 6: Final answer
    x = 11,665,328.99

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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.