Home / 86,851,379.12-130,281,258.65-28,557,766.53

Finding the Fourth Proportional to 86,851,379.12, 130,281,258.65 and 28,557,766.53

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Solution

The fourth proportional to 86,851,379.12, 130,281,258.65 and 28,557,766.53 is: 42,838,027.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,851,379.12 : 130,281,258.65 = 28,557,766.53 : x
  2. Step 2: Convert to fraction form
    86,851,379.12/130,281,258.65 = 28,557,766.53/x
  3. Step 3: Cross multiply
    86,851,379.12x = 130,281,258.65 × 28,557,766.53
  4. Step 4: Simplify right side
    86,851,379.12x = 3,720,541,767,618,454
  5. Step 5: Solve for x
    x = 3,720,541,767,618,454/86,851,379.12
  6. Step 6: Final answer
    x = 42,838,027.51

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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.