Home / 199,590,078.40-299,385,117.60-97,419,659.20

Finding the Fourth Proportional to 199,590,078.40, 299,385,117.60 and 97,419,659.20

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Solution

The fourth proportional to 199,590,078.40, 299,385,117.60 and 97,419,659.20 is: 146,129,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,590,078.40 : 299,385,117.60 = 97,419,659.20 : x
  2. Step 2: Convert to fraction form
    199,590,078.40/299,385,117.60 = 97,419,659.20/x
  3. Step 3: Cross multiply
    199,590,078.40x = 299,385,117.60 × 97,419,659.20
  4. Step 4: Simplify right side
    199,590,078.40x = 29,165,996,126,143,924
  5. Step 5: Solve for x
    x = 29,165,996,126,143,924/199,590,078.40
  6. Step 6: Final answer
    x = 146,129,488.80

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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.