Home / 118,012,078.20-177,018,117.30-72,095,575.80

Finding the Fourth Proportional to 118,012,078.20, 177,018,117.30 and 72,095,575.80

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Solution

The fourth proportional to 118,012,078.20, 177,018,117.30 and 72,095,575.80 is: 108,143,363.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,012,078.20 : 177,018,117.30 = 72,095,575.80 : x
  2. Step 2: Convert to fraction form
    118,012,078.20/177,018,117.30 = 72,095,575.80/x
  3. Step 3: Cross multiply
    118,012,078.20x = 177,018,117.30 × 72,095,575.80
  4. Step 4: Simplify right side
    118,012,078.20x = 12,762,223,093,775,442
  5. Step 5: Solve for x
    x = 12,762,223,093,775,442/118,012,078.20
  6. Step 6: Final answer
    x = 108,143,363.70

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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.