Home / 768,308,497.82-1,152,385,186.88-520,902,303.24

Finding the Fourth Proportional to 768,308,497.82, 1,152,385,186.88 and 520,902,303.24

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Solution

The fourth proportional to 768,308,497.82, 1,152,385,186.88 and 520,902,303.24 is: 781,300,870.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,308,497.82 : 1,152,385,186.88 = 520,902,303.24 : x
  2. Step 2: Convert to fraction form
    768,308,497.82/1,152,385,186.88 = 520,902,303.24/x
  3. Step 3: Cross multiply
    768,308,497.82x = 1,152,385,186.88 × 520,902,303.24
  4. Step 4: Simplify right side
    768,308,497.82x = 600,280,098,063,522,560
  5. Step 5: Solve for x
    x = 600,280,098,063,522,560/768,308,497.82
  6. Step 6: Final answer
    x = 781,300,870.38

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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.