Home / 80,447,079.60-120,670,619.40-74,148,519.60

Finding the Fourth Proportional to 80,447,079.60, 120,670,619.40 and 74,148,519.60

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Solution

The fourth proportional to 80,447,079.60, 120,670,619.40 and 74,148,519.60 is: 111,222,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,447,079.60 : 120,670,619.40 = 74,148,519.60 : x
  2. Step 2: Convert to fraction form
    80,447,079.60/120,670,619.40 = 74,148,519.60/x
  3. Step 3: Cross multiply
    80,447,079.60x = 120,670,619.40 × 74,148,519.60
  4. Step 4: Simplify right side
    80,447,079.60x = 8,947,547,787,725,040
  5. Step 5: Solve for x
    x = 8,947,547,787,725,040/80,447,079.60
  6. Step 6: Final answer
    x = 111,222,779.40

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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.