Home / 13,854,380.40-19,119,073.14-7,742,808.90

Finding the Fourth Proportional to 13,854,380.40, 19,119,073.14 and 7,742,808.90

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Solution

The fourth proportional to 13,854,380.40, 19,119,073.14 and 7,742,808.90 is: 10,685,092.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854,380.40 : 19,119,073.14 = 7,742,808.90 : x
  2. Step 2: Convert to fraction form
    13,854,380.40/19,119,073.14 = 7,742,808.90/x
  3. Step 3: Cross multiply
    13,854,380.40x = 19,119,073.14 × 7,742,808.90
  4. Step 4: Simplify right side
    13,854,380.40x = 148,035,329,668,142.97
  5. Step 5: Solve for x
    x = 148,035,329,668,142.97/13,854,380.40
  6. Step 6: Final answer
    x = 10,685,092.04

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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.