Home / 9,987,509.16-13,782,809.88-5,636,778.84

Finding the Fourth Proportional to 9,987,509.16, 13,782,809.88 and 5,636,778.84

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Solution

The fourth proportional to 9,987,509.16, 13,782,809.88 and 5,636,778.84 is: 7,778,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987,509.16 : 13,782,809.88 = 5,636,778.84 : x
  2. Step 2: Convert to fraction form
    9,987,509.16/13,782,809.88 = 5,636,778.84/x
  3. Step 3: Cross multiply
    9,987,509.16x = 13,782,809.88 × 5,636,778.84
  4. Step 4: Simplify right side
    9,987,509.16x = 77,690,651,087,326.94
  5. Step 5: Solve for x
    x = 77,690,651,087,326.94/9,987,509.16
  6. Step 6: Final answer
    x = 7,778,781.46

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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.