Home / 91,131,889.96-125,762,008.13-49,878,782.34

Finding the Fourth Proportional to 91,131,889.96, 125,762,008.13 and 49,878,782.34

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Solution

The fourth proportional to 91,131,889.96, 125,762,008.13 and 49,878,782.34 is: 68,832,719.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,131,889.96 : 125,762,008.13 = 49,878,782.34 : x
  2. Step 2: Convert to fraction form
    91,131,889.96/125,762,008.13 = 49,878,782.34/x
  3. Step 3: Cross multiply
    91,131,889.96x = 125,762,008.13 × 49,878,782.34
  4. Step 4: Simplify right side
    91,131,889.96x = 6,272,855,830,157,581
  5. Step 5: Solve for x
    x = 6,272,855,830,157,581/91,131,889.96
  6. Step 6: Final answer
    x = 68,832,719.62

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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.