Home / 156,678,781.80-235,018,172.70-143,286,468.60

Finding the Fourth Proportional to 156,678,781.80, 235,018,172.70 and 143,286,468.60

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Solution

The fourth proportional to 156,678,781.80, 235,018,172.70 and 143,286,468.60 is: 214,929,702.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,678,781.80 : 235,018,172.70 = 143,286,468.60 : x
  2. Step 2: Convert to fraction form
    156,678,781.80/235,018,172.70 = 143,286,468.60/x
  3. Step 3: Cross multiply
    156,678,781.80x = 235,018,172.70 × 143,286,468.60
  4. Step 4: Simplify right side
    156,678,781.80x = 33,674,924,023,007,924
  5. Step 5: Solve for x
    x = 33,674,924,023,007,924/156,678,781.80
  6. Step 6: Final answer
    x = 214,929,702.90

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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.