Home / 880,712,200.26-1,215,387,640.23-518,621,960.79

Finding the Fourth Proportional to 880,712,200.26, 1,215,387,640.23 and 518,621,960.79

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Solution

The fourth proportional to 880,712,200.26, 1,215,387,640.23 and 518,621,960.79 is: 715,701,134.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,712,200.26 : 1,215,387,640.23 = 518,621,960.79 : x
  2. Step 2: Convert to fraction form
    880,712,200.26/1,215,387,640.23 = 518,621,960.79/x
  3. Step 3: Cross multiply
    880,712,200.26x = 1,215,387,640.23 × 518,621,960.79
  4. Step 4: Simplify right side
    880,712,200.26x = 630,326,721,096,947,328
  5. Step 5: Solve for x
    x = 630,326,721,096,947,328/880,712,200.26
  6. Step 6: Final answer
    x = 715,701,134.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.