Home / 138,077,021.84-190,550,326.01-75,357,145.13

Finding the Fourth Proportional to 138,077,021.84, 190,550,326.01 and 75,357,145.13

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Solution

The fourth proportional to 138,077,021.84, 190,550,326.01 and 75,357,145.13 is: 103,995,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,077,021.84 : 190,550,326.01 = 75,357,145.13 : x
  2. Step 2: Convert to fraction form
    138,077,021.84/190,550,326.01 = 75,357,145.13/x
  3. Step 3: Cross multiply
    138,077,021.84x = 190,550,326.01 × 75,357,145.13
  4. Step 4: Simplify right side
    138,077,021.84x = 14,359,328,570,374,846
  5. Step 5: Solve for x
    x = 14,359,328,570,374,846/138,077,021.84
  6. Step 6: Final answer
    x = 103,995,062.90

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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.