Home / 91,809,095.70-137,713,643.55-79,851,673.20

Finding the Fourth Proportional to 91,809,095.70, 137,713,643.55 and 79,851,673.20

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Solution

The fourth proportional to 91,809,095.70, 137,713,643.55 and 79,851,673.20 is: 119,777,509.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,809,095.70 : 137,713,643.55 = 79,851,673.20 : x
  2. Step 2: Convert to fraction form
    91,809,095.70/137,713,643.55 = 79,851,673.20/x
  3. Step 3: Cross multiply
    91,809,095.70x = 137,713,643.55 × 79,851,673.20
  4. Step 4: Simplify right side
    91,809,095.70x = 10,996,664,859,935,890
  5. Step 5: Solve for x
    x = 10,996,664,859,935,890/91,809,095.70
  6. Step 6: Final answer
    x = 119,777,509.80

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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.