Home / 145,017,883.56-200,129,513.31-81,449,425.07

Finding the Fourth Proportional to 145,017,883.56, 200,129,513.31 and 81,449,425.07

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Solution

The fourth proportional to 145,017,883.56, 200,129,513.31 and 81,449,425.07 is: 112,402,921.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,017,883.56 : 200,129,513.31 = 81,449,425.07 : x
  2. Step 2: Convert to fraction form
    145,017,883.56/200,129,513.31 = 81,449,425.07/x
  3. Step 3: Cross multiply
    145,017,883.56x = 200,129,513.31 × 81,449,425.07
  4. Step 4: Simplify right side
    145,017,883.56x = 16,300,433,797,637,764
  5. Step 5: Solve for x
    x = 16,300,433,797,637,764/145,017,883.56
  6. Step 6: Final answer
    x = 112,402,921.61

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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.