Home / 10,282,630.60-15,423,945.90-8,640,339.40

Finding the Fourth Proportional to 10,282,630.60, 15,423,945.90 and 8,640,339.40

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Solution

The fourth proportional to 10,282,630.60, 15,423,945.90 and 8,640,339.40 is: 12,960,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,282,630.60 : 15,423,945.90 = 8,640,339.40 : x
  2. Step 2: Convert to fraction form
    10,282,630.60/15,423,945.90 = 8,640,339.40/x
  3. Step 3: Cross multiply
    10,282,630.60x = 15,423,945.90 × 8,640,339.40
  4. Step 4: Simplify right side
    10,282,630.60x = 133,268,127,463,238.47
  5. Step 5: Solve for x
    x = 133,268,127,463,238.47/10,282,630.60
  6. Step 6: Final answer
    x = 12,960,509.10

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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.