Home / 99,864,013.20-149,796,019.80-28,060,429.20

Finding the Fourth Proportional to 99,864,013.20, 149,796,019.80 and 28,060,429.20

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Solution

The fourth proportional to 99,864,013.20, 149,796,019.80 and 28,060,429.20 is: 42,090,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,864,013.20 : 149,796,019.80 = 28,060,429.20 : x
  2. Step 2: Convert to fraction form
    99,864,013.20/149,796,019.80 = 28,060,429.20/x
  3. Step 3: Cross multiply
    99,864,013.20x = 149,796,019.80 × 28,060,429.20
  4. Step 4: Simplify right side
    99,864,013.20x = 4,203,340,608,039,698.50
  5. Step 5: Solve for x
    x = 4,203,340,608,039,698.50/99,864,013.20
  6. Step 6: Final answer
    x = 42,090,643.80

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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.