Home / 427,707,149.29-590,168,445.78-249,120,428.57

Finding the Fourth Proportional to 427,707,149.29, 590,168,445.78 and 249,120,428.57

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Solution

The fourth proportional to 427,707,149.29, 590,168,445.78 and 249,120,428.57 is: 343,746,922.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,707,149.29 : 590,168,445.78 = 249,120,428.57 : x
  2. Step 2: Convert to fraction form
    427,707,149.29/590,168,445.78 = 249,120,428.57/x
  3. Step 3: Cross multiply
    427,707,149.29x = 590,168,445.78 × 249,120,428.57
  4. Step 4: Simplify right side
    427,707,149.29x = 147,023,016,141,204,384
  5. Step 5: Solve for x
    x = 147,023,016,141,204,384/427,707,149.29
  6. Step 6: Final answer
    x = 343,746,922.13

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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.