Home / 439,336,928.76-655,123,801.50-435,393,636.48

Finding the Fourth Proportional to 439,336,928.76, 655,123,801.50 and 435,393,636.48

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Solution

The fourth proportional to 439,336,928.76, 655,123,801.50 and 435,393,636.48 is: 649,243,702.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,336,928.76 : 655,123,801.50 = 435,393,636.48 : x
  2. Step 2: Convert to fraction form
    439,336,928.76/655,123,801.50 = 435,393,636.48/x
  3. Step 3: Cross multiply
    439,336,928.76x = 655,123,801.50 × 435,393,636.48
  4. Step 4: Simplify right side
    439,336,928.76x = 285,236,734,279,686,688
  5. Step 5: Solve for x
    x = 285,236,734,279,686,688/439,336,928.76
  6. Step 6: Final answer
    x = 649,243,702.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.