Home / 90,889,242.96-125,428,152.24-49,637,349.12

Finding the Fourth Proportional to 90,889,242.96, 125,428,152.24 and 49,637,349.12

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Solution

The fourth proportional to 90,889,242.96, 125,428,152.24 and 49,637,349.12 is: 68,500,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,889,242.96 : 125,428,152.24 = 49,637,349.12 : x
  2. Step 2: Convert to fraction form
    90,889,242.96/125,428,152.24 = 49,637,349.12/x
  3. Step 3: Cross multiply
    90,889,242.96x = 125,428,152.24 × 49,637,349.12
  4. Step 4: Simplify right side
    90,889,242.96x = 6,225,920,982,213,389
  5. Step 5: Solve for x
    x = 6,225,920,982,213,389/90,889,242.96
  6. Step 6: Final answer
    x = 68,500,086.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.