Home / 128,752,854.80-193,087,291.80-47,963,325.20

Finding the Fourth Proportional to 128,752,854.80, 193,087,291.80 and 47,963,325.20

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Solution

The fourth proportional to 128,752,854.80, 193,087,291.80 and 47,963,325.20 is: 71,929,345.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,752,854.80 : 193,087,291.80 = 47,963,325.20 : x
  2. Step 2: Convert to fraction form
    128,752,854.80/193,087,291.80 = 47,963,325.20/x
  3. Step 3: Cross multiply
    128,752,854.80x = 193,087,291.80 × 47,963,325.20
  4. Step 4: Simplify right side
    128,752,854.80x = 9,261,108,568,590,694
  5. Step 5: Solve for x
    x = 9,261,108,568,590,694/128,752,854.80
  6. Step 6: Final answer
    x = 71,929,345.43

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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.