Home / 118,272,021.20-177,408,031.80-67,311,227.60

Finding the Fourth Proportional to 118,272,021.20, 177,408,031.80 and 67,311,227.60

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Solution

The fourth proportional to 118,272,021.20, 177,408,031.80 and 67,311,227.60 is: 100,966,841.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,272,021.20 : 177,408,031.80 = 67,311,227.60 : x
  2. Step 2: Convert to fraction form
    118,272,021.20/177,408,031.80 = 67,311,227.60/x
  3. Step 3: Cross multiply
    118,272,021.20x = 177,408,031.80 × 67,311,227.60
  4. Step 4: Simplify right side
    118,272,021.20x = 11,941,552,406,557,838
  5. Step 5: Solve for x
    x = 11,941,552,406,557,838/118,272,021.20
  6. Step 6: Final answer
    x = 100,966,841.40

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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.