Home / 91,990,109.23-138,046,526.15-47,715,199.81

Finding the Fourth Proportional to 91,990,109.23, 138,046,526.15 and 47,715,199.81

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Solution

The fourth proportional to 91,990,109.23, 138,046,526.15 and 47,715,199.81 is: 71,604,628.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,990,109.23 : 138,046,526.15 = 47,715,199.81 : x
  2. Step 2: Convert to fraction form
    91,990,109.23/138,046,526.15 = 47,715,199.81/x
  3. Step 3: Cross multiply
    91,990,109.23x = 138,046,526.15 × 47,715,199.81
  4. Step 4: Simplify right side
    91,990,109.23x = 6,586,917,577,739,948
  5. Step 5: Solve for x
    x = 6,586,917,577,739,948/91,990,109.23
  6. Step 6: Final answer
    x = 71,604,628.29

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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.