Home / 9,986,838.12-13,781,831.94-5,636,836.80

Finding the Fourth Proportional to 9,986,838.12, 13,781,831.94 and 5,636,836.80

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Solution

The fourth proportional to 9,986,838.12, 13,781,831.94 and 5,636,836.80 is: 7,778,832.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986,838.12 : 13,781,831.94 = 5,636,836.80 : x
  2. Step 2: Convert to fraction form
    9,986,838.12/13,781,831.94 = 5,636,836.80/x
  3. Step 3: Cross multiply
    9,986,838.12x = 13,781,831.94 × 5,636,836.80
  4. Step 4: Simplify right side
    9,986,838.12x = 77,685,937,450,807.39
  5. Step 5: Solve for x
    x = 77,685,937,450,807.39/9,986,838.12
  6. Step 6: Final answer
    x = 7,778,832.15

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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.