Home / 145,814,489.80-218,427,801.90-91,059,008.20

Finding the Fourth Proportional to 145,814,489.80, 218,427,801.90 and 91,059,008.20

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Solution

The fourth proportional to 145,814,489.80, 218,427,801.90 and 91,059,008.20 is: 136,404,955.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,814,489.80 : 218,427,801.90 = 91,059,008.20 : x
  2. Step 2: Convert to fraction form
    145,814,489.80/218,427,801.90 = 91,059,008.20/x
  3. Step 3: Cross multiply
    145,814,489.80x = 218,427,801.90 × 91,059,008.20
  4. Step 4: Simplify right side
    145,814,489.80x = 19,889,819,004,320,076
  5. Step 5: Solve for x
    x = 19,889,819,004,320,076/145,814,489.80
  6. Step 6: Final answer
    x = 136,404,955.58

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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.