Home / 140,247,977.20-210,371,962.56-38,012,012.80

Finding the Fourth Proportional to 140,247,977.20, 210,371,962.56 and 38,012,012.80

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Solution

The fourth proportional to 140,247,977.20, 210,371,962.56 and 38,012,012.80 is: 57,018,018.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,247,977.20 : 210,371,962.56 = 38,012,012.80 : x
  2. Step 2: Convert to fraction form
    140,247,977.20/210,371,962.56 = 38,012,012.80/x
  3. Step 3: Cross multiply
    140,247,977.20x = 210,371,962.56 × 38,012,012.80
  4. Step 4: Simplify right side
    140,247,977.20x = 7,996,661,733,591,840
  5. Step 5: Solve for x
    x = 7,996,661,733,591,840/140,247,977.20
  6. Step 6: Final answer
    x = 57,018,018.32

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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.