Home / 10,404,001.20-15,606,001.80-8,640,404.40

Finding the Fourth Proportional to 10,404,001.20, 15,606,001.80 and 8,640,404.40

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Solution

The fourth proportional to 10,404,001.20, 15,606,001.80 and 8,640,404.40 is: 12,960,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,404,001.20 : 15,606,001.80 = 8,640,404.40 : x
  2. Step 2: Convert to fraction form
    10,404,001.20/15,606,001.80 = 8,640,404.40/x
  3. Step 3: Cross multiply
    10,404,001.20x = 15,606,001.80 × 8,640,404.40
  4. Step 4: Simplify right side
    10,404,001.20x = 134,842,166,619,127.94
  5. Step 5: Solve for x
    x = 134,842,166,619,127.94/10,404,001.20
  6. Step 6: Final answer
    x = 12,960,606.60

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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.