Home / 75,305,693.40-112,958,540.10-72,117,047.40

Finding the Fourth Proportional to 75,305,693.40, 112,958,540.10 and 72,117,047.40

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Solution

The fourth proportional to 75,305,693.40, 112,958,540.10 and 72,117,047.40 is: 108,175,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,305,693.40 : 112,958,540.10 = 72,117,047.40 : x
  2. Step 2: Convert to fraction form
    75,305,693.40/112,958,540.10 = 72,117,047.40/x
  3. Step 3: Cross multiply
    75,305,693.40x = 112,958,540.10 × 72,117,047.40
  4. Step 4: Simplify right side
    75,305,693.40x = 8,146,236,390,626,501
  5. Step 5: Solve for x
    x = 8,146,236,390,626,501/75,305,693.40
  6. Step 6: Final answer
    x = 108,175,571.10

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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.