Home / 12,875,901.60-17,770,289.04-7,722,098.40

Finding the Fourth Proportional to 12,875,901.60, 17,770,289.04 and 7,722,098.40

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Solution

The fourth proportional to 12,875,901.60, 17,770,289.04 and 7,722,098.40 is: 10,657,422.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875,901.60 : 17,770,289.04 = 7,722,098.40 : x
  2. Step 2: Convert to fraction form
    12,875,901.60/17,770,289.04 = 7,722,098.40/x
  3. Step 3: Cross multiply
    12,875,901.60x = 17,770,289.04 × 7,722,098.40
  4. Step 4: Simplify right side
    12,875,901.60x = 137,223,920,563,321.53
  5. Step 5: Solve for x
    x = 137,223,920,563,321.53/12,875,901.60
  6. Step 6: Final answer
    x = 10,657,422.28

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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.