Home / 126,159,510.69-189,238,004.45-39,897,932.13

Finding the Fourth Proportional to 126,159,510.69, 189,238,004.45 and 39,897,932.13

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Solution

The fourth proportional to 126,159,510.69, 189,238,004.45 and 39,897,932.13 is: 59,846,499.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,159,510.69 : 189,238,004.45 = 39,897,932.13 : x
  2. Step 2: Convert to fraction form
    126,159,510.69/189,238,004.45 = 39,897,932.13/x
  3. Step 3: Cross multiply
    126,159,510.69x = 189,238,004.45 × 39,897,932.13
  4. Step 4: Simplify right side
    126,159,510.69x = 7,550,205,057,763,249
  5. Step 5: Solve for x
    x = 7,550,205,057,763,249/126,159,510.69
  6. Step 6: Final answer
    x = 59,846,499.22

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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.