Home / 220,766,685.90-304,644,297.18-121,641,886.15

Finding the Fourth Proportional to 220,766,685.90, 304,644,297.18 and 121,641,886.15

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Solution

The fourth proportional to 220,766,685.90, 304,644,297.18 and 121,641,886.15 is: 167,858,238.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,766,685.90 : 304,644,297.18 = 121,641,886.15 : x
  2. Step 2: Convert to fraction form
    220,766,685.90/304,644,297.18 = 121,641,886.15/x
  3. Step 3: Cross multiply
    220,766,685.90x = 304,644,297.18 × 121,641,886.15
  4. Step 4: Simplify right side
    220,766,685.90x = 37,057,506,913,816,328
  5. Step 5: Solve for x
    x = 37,057,506,913,816,328/220,766,685.90
  6. Step 6: Final answer
    x = 167,858,238.04

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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.