Home / 118,573,292.20-177,859,938.30-77,889,843.40

Finding the Fourth Proportional to 118,573,292.20, 177,859,938.30 and 77,889,843.40

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Solution

The fourth proportional to 118,573,292.20, 177,859,938.30 and 77,889,843.40 is: 116,834,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,573,292.20 : 177,859,938.30 = 77,889,843.40 : x
  2. Step 2: Convert to fraction form
    118,573,292.20/177,859,938.30 = 77,889,843.40/x
  3. Step 3: Cross multiply
    118,573,292.20x = 177,859,938.30 × 77,889,843.40
  4. Step 4: Simplify right side
    118,573,292.20x = 13,853,482,741,320,664
  5. Step 5: Solve for x
    x = 13,853,482,741,320,664/118,573,292.20
  6. Step 6: Final answer
    x = 116,834,765.10

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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.