Home / 287,863,045.31-431,795,826.85-91,127,419.14

Finding the Fourth Proportional to 287,863,045.31, 431,795,826.85 and 91,127,419.14

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Solution

The fourth proportional to 287,863,045.31, 431,795,826.85 and 91,127,419.14 is: 136,691,527.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,863,045.31 : 431,795,826.85 = 91,127,419.14 : x
  2. Step 2: Convert to fraction form
    287,863,045.31/431,795,826.85 = 91,127,419.14/x
  3. Step 3: Cross multiply
    287,863,045.31x = 431,795,826.85 × 91,127,419.14
  4. Step 4: Simplify right side
    287,863,045.31x = 39,348,439,296,867,024
  5. Step 5: Solve for x
    x = 39,348,439,296,867,024/287,863,045.31
  6. Step 6: Final answer
    x = 136,691,527.23

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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.