Home / 72,577,644.70-108,866,467.05-21,455,110.30

Finding the Fourth Proportional to 72,577,644.70, 108,866,467.05 and 21,455,110.30

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Solution

The fourth proportional to 72,577,644.70, 108,866,467.05 and 21,455,110.30 is: 32,182,665.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,577,644.70 : 108,866,467.05 = 21,455,110.30 : x
  2. Step 2: Convert to fraction form
    72,577,644.70/108,866,467.05 = 21,455,110.30/x
  3. Step 3: Cross multiply
    72,577,644.70x = 108,866,467.05 × 21,455,110.30
  4. Step 4: Simplify right side
    72,577,644.70x = 2,335,742,058,529,065.50
  5. Step 5: Solve for x
    x = 2,335,742,058,529,065.50/72,577,644.70
  6. Step 6: Final answer
    x = 32,182,665.45

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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.