Home / 136,282,763.60-204,424,145.40-81,863,205.20

Finding the Fourth Proportional to 136,282,763.60, 204,424,145.40 and 81,863,205.20

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Solution

The fourth proportional to 136,282,763.60, 204,424,145.40 and 81,863,205.20 is: 122,794,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,282,763.60 : 204,424,145.40 = 81,863,205.20 : x
  2. Step 2: Convert to fraction form
    136,282,763.60/204,424,145.40 = 81,863,205.20/x
  3. Step 3: Cross multiply
    136,282,763.60x = 204,424,145.40 × 81,863,205.20
  4. Step 4: Simplify right side
    136,282,763.60x = 16,734,815,762,714,838
  5. Step 5: Solve for x
    x = 16,734,815,762,714,838/136,282,763.60
  6. Step 6: Final answer
    x = 122,794,807.80

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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.