Home / 8,615,888.14-11,891,951.80-5,355,165.50

Finding the Fourth Proportional to 8,615,888.14, 11,891,951.80 and 5,355,165.50

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Solution

The fourth proportional to 8,615,888.14, 11,891,951.80 and 5,355,165.50 is: 7,391,387.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615,888.14 : 11,891,951.80 = 5,355,165.50 : x
  2. Step 2: Convert to fraction form
    8,615,888.14/11,891,951.80 = 5,355,165.50/x
  3. Step 3: Cross multiply
    8,615,888.14x = 11,891,951.80 × 5,355,165.50
  4. Step 4: Simplify right side
    8,615,888.14x = 63,683,370,007,022.91
  5. Step 5: Solve for x
    x = 63,683,370,007,022.91/8,615,888.14
  6. Step 6: Final answer
    x = 7,391,387.74

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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.