Home / 100,115,999.10-150,173,998.65-98,415,387.90

Finding the Fourth Proportional to 100,115,999.10, 150,173,998.65 and 98,415,387.90

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Solution

The fourth proportional to 100,115,999.10, 150,173,998.65 and 98,415,387.90 is: 147,623,081.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,115,999.10 : 150,173,998.65 = 98,415,387.90 : x
  2. Step 2: Convert to fraction form
    100,115,999.10/150,173,998.65 = 98,415,387.90/x
  3. Step 3: Cross multiply
    100,115,999.10x = 150,173,998.65 × 98,415,387.90
  4. Step 4: Simplify right side
    100,115,999.10x = 14,779,432,329,633,828
  5. Step 5: Solve for x
    x = 14,779,432,329,633,828/100,115,999.10
  6. Step 6: Final answer
    x = 147,623,081.85

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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.