Home / 70,567,680.72-105,832,405.08-19,437,538.80

Finding the Fourth Proportional to 70,567,680.72, 105,832,405.08 and 19,437,538.80

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Solution

The fourth proportional to 70,567,680.72, 105,832,405.08 and 19,437,538.80 is: 29,151,042.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,567,680.72 : 105,832,405.08 = 19,437,538.80 : x
  2. Step 2: Convert to fraction form
    70,567,680.72/105,832,405.08 = 19,437,538.80/x
  3. Step 3: Cross multiply
    70,567,680.72x = 105,832,405.08 × 19,437,538.80
  4. Step 4: Simplify right side
    70,567,680.72x = 2,057,121,480,039,817.25
  5. Step 5: Solve for x
    x = 2,057,121,480,039,817.25/70,567,680.72
  6. Step 6: Final answer
    x = 29,151,042.79

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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.