Home / 78,312,267.20-117,468,400.80-58,156,875.20

Finding the Fourth Proportional to 78,312,267.20, 117,468,400.80 and 58,156,875.20

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Solution

The fourth proportional to 78,312,267.20, 117,468,400.80 and 58,156,875.20 is: 87,235,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312,267.20 : 117,468,400.80 = 58,156,875.20 : x
  2. Step 2: Convert to fraction form
    78,312,267.20/117,468,400.80 = 58,156,875.20/x
  3. Step 3: Cross multiply
    78,312,267.20x = 117,468,400.80 × 58,156,875.20
  4. Step 4: Simplify right side
    78,312,267.20x = 6,831,595,125,269,180
  5. Step 5: Solve for x
    x = 6,831,595,125,269,180/78,312,267.20
  6. Step 6: Final answer
    x = 87,235,312.80

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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.