Home / 10,404,001.70-15,606,002.55-8,640,404.90

Finding the Fourth Proportional to 10,404,001.70, 15,606,002.55 and 8,640,404.90

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Solution

The fourth proportional to 10,404,001.70, 15,606,002.55 and 8,640,404.90 is: 12,960,607.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,404,001.70 : 15,606,002.55 = 8,640,404.90 : x
  2. Step 2: Convert to fraction form
    10,404,001.70/15,606,002.55 = 8,640,404.90/x
  3. Step 3: Cross multiply
    10,404,001.70x = 15,606,002.55 × 8,640,404.90
  4. Step 4: Simplify right side
    10,404,001.70x = 134,842,180,902,432.50
  5. Step 5: Solve for x
    x = 134,842,180,902,432.50/10,404,001.70
  6. Step 6: Final answer
    x = 12,960,607.35

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1.5x scale

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.