Home / 7,128,001.60-10,692,002.40-3,146,689.60

Finding the Fourth Proportional to 7,128,001.60, 10,692,002.40 and 3,146,689.60

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Solution

The fourth proportional to 7,128,001.60, 10,692,002.40 and 3,146,689.60 is: 4,720,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,001.60 : 10,692,002.40 = 3,146,689.60 : x
  2. Step 2: Convert to fraction form
    7,128,001.60/10,692,002.40 = 3,146,689.60/x
  3. Step 3: Cross multiply
    7,128,001.60x = 10,692,002.40 × 3,146,689.60
  4. Step 4: Simplify right side
    7,128,001.60x = 33,644,412,755,255.04
  5. Step 5: Solve for x
    x = 33,644,412,755,255.04/7,128,001.60
  6. Step 6: Final answer
    x = 4,720,034.40

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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.