Home / 91,207,879.65-136,812,705.21-72,966,759.03

Finding the Fourth Proportional to 91,207,879.65, 136,812,705.21 and 72,966,759.03

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Solution

The fourth proportional to 91,207,879.65, 136,812,705.21 and 72,966,759.03 is: 109,450,847.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,207,879.65 : 136,812,705.21 = 72,966,759.03 : x
  2. Step 2: Convert to fraction form
    91,207,879.65/136,812,705.21 = 72,966,759.03/x
  3. Step 3: Cross multiply
    91,207,879.65x = 136,812,705.21 × 72,966,759.03
  4. Step 4: Simplify right side
    91,207,879.65x = 9,982,779,693,300,496
  5. Step 5: Solve for x
    x = 9,982,779,693,300,496/91,207,879.65
  6. Step 6: Final answer
    x = 109,450,847.14

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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.