Home / 72,288,644.43-99,840,464.91-48,726,543.36

Finding the Fourth Proportional to 72,288,644.43, 99,840,464.91 and 48,726,543.36

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Solution

The fourth proportional to 72,288,644.43, 99,840,464.91 and 48,726,543.36 is: 67,297,993.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,288,644.43 : 99,840,464.91 = 48,726,543.36 : x
  2. Step 2: Convert to fraction form
    72,288,644.43/99,840,464.91 = 48,726,543.36/x
  3. Step 3: Cross multiply
    72,288,644.43x = 99,840,464.91 × 48,726,543.36
  4. Step 4: Simplify right side
    72,288,644.43x = 4,864,880,742,519,673
  5. Step 5: Solve for x
    x = 4,864,880,742,519,673/72,288,644.43
  6. Step 6: Final answer
    x = 67,297,993.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.