Home / 20,185,280.80-30,241,835.70-12,283,649.80

Finding the Fourth Proportional to 20,185,280.80, 30,241,835.70 and 12,283,649.80

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Solution

The fourth proportional to 20,185,280.80, 30,241,835.70 and 12,283,649.80 is: 18,403,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185,280.80 : 30,241,835.70 = 12,283,649.80 : x
  2. Step 2: Convert to fraction form
    20,185,280.80/30,241,835.70 = 12,283,649.80/x
  3. Step 3: Cross multiply
    20,185,280.80x = 30,241,835.70 × 12,283,649.80
  4. Step 4: Simplify right side
    20,185,280.80x = 371,480,119,047,937.88
  5. Step 5: Solve for x
    x = 371,480,119,047,937.88/20,185,280.80
  6. Step 6: Final answer
    x = 18,403,515.05

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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.