Home / 7,917,000.90-11,861,504.55-7,021,205.70

Finding the Fourth Proportional to 7,917,000.90, 11,861,504.55 and 7,021,205.70

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Solution

The fourth proportional to 7,917,000.90, 11,861,504.55 and 7,021,205.70 is: 10,519,395.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917,000.90 : 11,861,504.55 = 7,021,205.70 : x
  2. Step 2: Convert to fraction form
    7,917,000.90/11,861,504.55 = 7,021,205.70/x
  3. Step 3: Cross multiply
    7,917,000.90x = 11,861,504.55 × 7,021,205.70
  4. Step 4: Simplify right side
    7,917,000.90x = 83,282,063,357,035.94
  5. Step 5: Solve for x
    x = 83,282,063,357,035.94/7,917,000.90
  6. Step 6: Final answer
    x = 10,519,395.46

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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.