Home / 768,308,394.52-1,152,385,031.58-520,902,200.20

Finding the Fourth Proportional to 768,308,394.52, 1,152,385,031.58 and 520,902,200.20

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Solution

The fourth proportional to 768,308,394.52, 1,152,385,031.58 and 520,902,200.20 is: 781,300,715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,308,394.52 : 1,152,385,031.58 = 520,902,200.20 : x
  2. Step 2: Convert to fraction form
    768,308,394.52/1,152,385,031.58 = 520,902,200.20/x
  3. Step 3: Cross multiply
    768,308,394.52x = 1,152,385,031.58 × 520,902,200.20
  4. Step 4: Simplify right side
    768,308,394.52x = 600,279,898,427,568,384
  5. Step 5: Solve for x
    x = 600,279,898,427,568,384/768,308,394.52
  6. Step 6: Final answer
    x = 781,300,715.58

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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.