Home / 13,854,769.40-19,119,016.90-7,659,421.80

Finding the Fourth Proportional to 13,854,769.40, 19,119,016.90 and 7,659,421.80

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Solution

The fourth proportional to 13,854,769.40, 19,119,016.90 and 7,659,421.80 is: 10,569,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854,769.40 : 19,119,016.90 = 7,659,421.80 : x
  2. Step 2: Convert to fraction form
    13,854,769.40/19,119,016.90 = 7,659,421.80/x
  3. Step 3: Cross multiply
    13,854,769.40x = 19,119,016.90 × 7,659,421.80
  4. Step 4: Simplify right side
    13,854,769.40x = 146,440,614,838,428.41
  5. Step 5: Solve for x
    x = 146,440,614,838,428.41/13,854,769.40
  6. Step 6: Final answer
    x = 10,569,689.80

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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.