Home / 118,206,053.80-177,309,080.70-72,620,031.40

Finding the Fourth Proportional to 118,206,053.80, 177,309,080.70 and 72,620,031.40

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Solution

The fourth proportional to 118,206,053.80, 177,309,080.70 and 72,620,031.40 is: 108,930,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,206,053.80 : 177,309,080.70 = 72,620,031.40 : x
  2. Step 2: Convert to fraction form
    118,206,053.80/177,309,080.70 = 72,620,031.40/x
  3. Step 3: Cross multiply
    118,206,053.80x = 177,309,080.70 × 72,620,031.40
  4. Step 4: Simplify right side
    118,206,053.80x = 12,876,191,007,939,134
  5. Step 5: Solve for x
    x = 12,876,191,007,939,134/118,206,053.80
  6. Step 6: Final answer
    x = 108,930,047.10

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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.