Home / 187,100,999.80-280,226,346.90-118,226,246.20

Finding the Fourth Proportional to 187,100,999.80, 280,226,346.90 and 118,226,246.20

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Solution

The fourth proportional to 187,100,999.80, 280,226,346.90 and 118,226,246.20 is: 177,070,721.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,100,999.80 : 280,226,346.90 = 118,226,246.20 : x
  2. Step 2: Convert to fraction form
    187,100,999.80/280,226,346.90 = 118,226,246.20/x
  3. Step 3: Cross multiply
    187,100,999.80x = 280,226,346.90 × 118,226,246.20
  4. Step 4: Simplify right side
    187,100,999.80x = 33,130,109,080,326,004
  5. Step 5: Solve for x
    x = 33,130,109,080,326,004/187,100,999.80
  6. Step 6: Final answer
    x = 177,070,721.78

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1.5x scale

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.