Home / 154,342,966.80-212,993,498.62-83,778,531.18

Finding the Fourth Proportional to 154,342,966.80, 212,993,498.62 and 83,778,531.18

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Solution

The fourth proportional to 154,342,966.80, 212,993,498.62 and 83,778,531.18 is: 115,614,484.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,342,966.80 : 212,993,498.62 = 83,778,531.18 : x
  2. Step 2: Convert to fraction form
    154,342,966.80/212,993,498.62 = 83,778,531.18/x
  3. Step 3: Cross multiply
    154,342,966.80x = 212,993,498.62 × 83,778,531.18
  4. Step 4: Simplify right side
    154,342,966.80x = 17,844,282,465,063,512
  5. Step 5: Solve for x
    x = 17,844,282,465,063,512/154,342,966.80
  6. Step 6: Final answer
    x = 115,614,484.00

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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.