Home / 117,252,207.80-175,878,311.70-86,641,206.20

Finding the Fourth Proportional to 117,252,207.80, 175,878,311.70 and 86,641,206.20

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Solution

The fourth proportional to 117,252,207.80, 175,878,311.70 and 86,641,206.20 is: 129,961,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,252,207.80 : 175,878,311.70 = 86,641,206.20 : x
  2. Step 2: Convert to fraction form
    117,252,207.80/175,878,311.70 = 86,641,206.20/x
  3. Step 3: Cross multiply
    117,252,207.80x = 175,878,311.70 × 86,641,206.20
  4. Step 4: Simplify right side
    117,252,207.80x = 15,238,309,070,107,572
  5. Step 5: Solve for x
    x = 15,238,309,070,107,572/117,252,207.80
  6. Step 6: Final answer
    x = 129,961,809.30

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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.