Home / 83,014,671.40-124,522,007.10-78,311,746.60

Finding the Fourth Proportional to 83,014,671.40, 124,522,007.10 and 78,311,746.60

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Solution

The fourth proportional to 83,014,671.40, 124,522,007.10 and 78,311,746.60 is: 117,467,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,014,671.40 : 124,522,007.10 = 78,311,746.60 : x
  2. Step 2: Convert to fraction form
    83,014,671.40/124,522,007.10 = 78,311,746.60/x
  3. Step 3: Cross multiply
    83,014,671.40x = 124,522,007.10 × 78,311,746.60
  4. Step 4: Simplify right side
    83,014,671.40x = 9,751,535,866,138,600
  5. Step 5: Solve for x
    x = 9,751,535,866,138,600/83,014,671.40
  6. Step 6: Final answer
    x = 117,467,619.90

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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.