Home / 538,456,513.28-743,127,105.11-315,625,417.90

Finding the Fourth Proportional to 538,456,513.28, 743,127,105.11 and 315,625,417.90

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Solution

The fourth proportional to 538,456,513.28, 743,127,105.11 and 315,625,417.90 is: 435,596,556.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,456,513.28 : 743,127,105.11 = 315,625,417.90 : x
  2. Step 2: Convert to fraction form
    538,456,513.28/743,127,105.11 = 315,625,417.90/x
  3. Step 3: Cross multiply
    538,456,513.28x = 743,127,105.11 × 315,625,417.90
  4. Step 4: Simplify right side
    538,456,513.28x = 234,549,803,099,725,024
  5. Step 5: Solve for x
    x = 234,549,803,099,725,024/538,456,513.28
  6. Step 6: Final answer
    x = 435,596,556.67

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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.