Home / 9,986,859.12-13,781,860.92-5,636,857.80

Finding the Fourth Proportional to 9,986,859.12, 13,781,860.92 and 5,636,857.80

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Solution

The fourth proportional to 9,986,859.12, 13,781,860.92 and 5,636,857.80 is: 7,778,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986,859.12 : 13,781,860.92 = 5,636,857.80 : x
  2. Step 2: Convert to fraction form
    9,986,859.12/13,781,860.92 = 5,636,857.80/x
  3. Step 3: Cross multiply
    9,986,859.12x = 13,781,860.92 × 5,636,857.80
  4. Step 4: Simplify right side
    9,986,859.12x = 77,686,390,225,417.17
  5. Step 5: Solve for x
    x = 77,686,390,225,417.17/9,986,859.12
  6. Step 6: Final answer
    x = 7,778,861.13

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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.