Home / 72,864,038.20-109,296,057.30-19,011,350.20

Finding the Fourth Proportional to 72,864,038.20, 109,296,057.30 and 19,011,350.20

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Solution

The fourth proportional to 72,864,038.20, 109,296,057.30 and 19,011,350.20 is: 28,517,025.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,864,038.20 : 109,296,057.30 = 19,011,350.20 : x
  2. Step 2: Convert to fraction form
    72,864,038.20/109,296,057.30 = 19,011,350.20/x
  3. Step 3: Cross multiply
    72,864,038.20x = 109,296,057.30 × 19,011,350.20
  4. Step 4: Simplify right side
    72,864,038.20x = 2,077,865,620,809,566.25
  5. Step 5: Solve for x
    x = 2,077,865,620,809,566.25/72,864,038.20
  6. Step 6: Final answer
    x = 28,517,025.30

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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.