Home / 9,782,113.88-13,499,738.76-5,431,200.40

Finding the Fourth Proportional to 9,782,113.88, 13,499,738.76 and 5,431,200.40

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Solution

The fourth proportional to 9,782,113.88, 13,499,738.76 and 5,431,200.40 is: 7,495,290.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,782,113.88 : 13,499,738.76 = 5,431,200.40 : x
  2. Step 2: Convert to fraction form
    9,782,113.88/13,499,738.76 = 5,431,200.40/x
  3. Step 3: Cross multiply
    9,782,113.88x = 13,499,738.76 × 5,431,200.40
  4. Step 4: Simplify right side
    9,782,113.88x = 73,319,786,553,207.52
  5. Step 5: Solve for x
    x = 73,319,786,553,207.52/9,782,113.88
  6. Step 6: Final answer
    x = 7,495,290.63

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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.