Home / 112,565,502.20-155,128,090.74-90,213,098.60

Finding the Fourth Proportional to 112,565,502.20, 155,128,090.74 and 90,213,098.60

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Solution

The fourth proportional to 112,565,502.20, 155,128,090.74 and 90,213,098.60 is: 124,323,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,565,502.20 : 155,128,090.74 = 90,213,098.60 : x
  2. Step 2: Convert to fraction form
    112,565,502.20/155,128,090.74 = 90,213,098.60/x
  3. Step 3: Cross multiply
    112,565,502.20x = 155,128,090.74 × 90,213,098.60
  4. Step 4: Simplify right side
    112,565,502.20x = 13,994,585,745,557,366
  5. Step 5: Solve for x
    x = 13,994,585,745,557,366/112,565,502.20
  6. Step 6: Final answer
    x = 124,323,931.15

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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.