Home / 19,318,437.20-28,977,655.80-12,599,973.20

Finding the Fourth Proportional to 19,318,437.20, 28,977,655.80 and 12,599,973.20

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Solution

The fourth proportional to 19,318,437.20, 28,977,655.80 and 12,599,973.20 is: 18,899,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318,437.20 : 28,977,655.80 = 12,599,973.20 : x
  2. Step 2: Convert to fraction form
    19,318,437.20/28,977,655.80 = 12,599,973.20/x
  3. Step 3: Cross multiply
    19,318,437.20x = 28,977,655.80 × 12,599,973.20
  4. Step 4: Simplify right side
    19,318,437.20x = 365,117,686,478,824.56
  5. Step 5: Solve for x
    x = 365,117,686,478,824.56/19,318,437.20
  6. Step 6: Final answer
    x = 18,899,959.80

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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.