Home / 138,806,387.61-191,552,816.96-76,930,711.98

Finding the Fourth Proportional to 138,806,387.61, 191,552,816.96 and 76,930,711.98

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Solution

The fourth proportional to 138,806,387.61, 191,552,816.96 and 76,930,711.98 is: 106,164,383.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,806,387.61 : 191,552,816.96 = 76,930,711.98 : x
  2. Step 2: Convert to fraction form
    138,806,387.61/191,552,816.96 = 76,930,711.98/x
  3. Step 3: Cross multiply
    138,806,387.61x = 191,552,816.96 × 76,930,711.98
  4. Step 4: Simplify right side
    138,806,387.61x = 14,736,294,589,692,932
  5. Step 5: Solve for x
    x = 14,736,294,589,692,932/138,806,387.61
  6. Step 6: Final answer
    x = 106,164,383.67

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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.