Home / 237,861,172.80-356,791,759.20-212,918,875.20

Finding the Fourth Proportional to 237,861,172.80, 356,791,759.20 and 212,918,875.20

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Solution

The fourth proportional to 237,861,172.80, 356,791,759.20 and 212,918,875.20 is: 319,378,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,861,172.80 : 356,791,759.20 = 212,918,875.20 : x
  2. Step 2: Convert to fraction form
    237,861,172.80/356,791,759.20 = 212,918,875.20/x
  3. Step 3: Cross multiply
    237,861,172.80x = 356,791,759.20 × 212,918,875.20
  4. Step 4: Simplify right side
    237,861,172.80x = 75,967,700,049,493,248
  5. Step 5: Solve for x
    x = 75,967,700,049,493,248/237,861,172.80
  6. Step 6: Final answer
    x = 319,378,312.80

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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.