Home / 20,997,947.80-31,496,921.70-7,533,026.20

Finding the Fourth Proportional to 20,997,947.80, 31,496,921.70 and 7,533,026.20

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Solution

The fourth proportional to 20,997,947.80, 31,496,921.70 and 7,533,026.20 is: 11,299,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997,947.80 : 31,496,921.70 = 7,533,026.20 : x
  2. Step 2: Convert to fraction form
    20,997,947.80/31,496,921.70 = 7,533,026.20/x
  3. Step 3: Cross multiply
    20,997,947.80x = 31,496,921.70 × 7,533,026.20
  4. Step 4: Simplify right side
    20,997,947.80x = 237,267,136,385,448.53
  5. Step 5: Solve for x
    x = 237,267,136,385,448.53/20,997,947.80
  6. Step 6: Final answer
    x = 11,299,539.30

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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.