Home / 7,557,901.60-11,336,938.80-1,878,138.40

Finding the Fourth Proportional to 7,557,901.60, 11,336,938.80 and 1,878,138.40

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Solution

The fourth proportional to 7,557,901.60, 11,336,938.80 and 1,878,138.40 is: 2,817,229.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,557,901.60 : 11,336,938.80 = 1,878,138.40 : x
  2. Step 2: Convert to fraction form
    7,557,901.60/11,336,938.80 = 1,878,138.40/x
  3. Step 3: Cross multiply
    7,557,901.60x = 11,336,938.80 × 1,878,138.40
  4. Step 4: Simplify right side
    7,557,901.60x = 21,292,340,098,729.92
  5. Step 5: Solve for x
    x = 21,292,340,098,729.92/7,557,901.60
  6. Step 6: Final answer
    x = 2,817,229.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.