Home / 99,845,101.80-149,693,003.10-42,290,260.20

Finding the Fourth Proportional to 99,845,101.80, 149,693,003.10 and 42,290,260.20

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Solution

The fourth proportional to 99,845,101.80, 149,693,003.10 and 42,290,260.20 is: 63,403,771.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,845,101.80 : 149,693,003.10 = 42,290,260.20 : x
  2. Step 2: Convert to fraction form
    99,845,101.80/149,693,003.10 = 42,290,260.20/x
  3. Step 3: Cross multiply
    99,845,101.80x = 149,693,003.10 × 42,290,260.20
  4. Step 4: Simplify right side
    99,845,101.80x = 6,330,556,051,218,407
  5. Step 5: Solve for x
    x = 6,330,556,051,218,407/99,845,101.80
  6. Step 6: Final answer
    x = 63,403,771.81

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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.