Home / 7,981,430.40-11,972,145.60-5,462,006.40

Finding the Fourth Proportional to 7,981,430.40, 11,972,145.60 and 5,462,006.40

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Solution

The fourth proportional to 7,981,430.40, 11,972,145.60 and 5,462,006.40 is: 8,193,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981,430.40 : 11,972,145.60 = 5,462,006.40 : x
  2. Step 2: Convert to fraction form
    7,981,430.40/11,972,145.60 = 5,462,006.40/x
  3. Step 3: Cross multiply
    7,981,430.40x = 11,972,145.60 × 5,462,006.40
  4. Step 4: Simplify right side
    7,981,430.40x = 65,391,935,888,931.84
  5. Step 5: Solve for x
    x = 65,391,935,888,931.84/7,981,430.40
  6. Step 6: Final answer
    x = 8,193,009.60

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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.