Home / 42,126,868.80-63,193,802.40-13,372,192.80

Finding the Fourth Proportional to 42,126,868.80, 63,193,802.40 and 13,372,192.80

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Solution

The fourth proportional to 42,126,868.80, 63,193,802.40 and 13,372,192.80 is: 20,059,399.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,126,868.80 : 63,193,802.40 = 13,372,192.80 : x
  2. Step 2: Convert to fraction form
    42,126,868.80/63,193,802.40 = 13,372,192.80/x
  3. Step 3: Cross multiply
    42,126,868.80x = 63,193,802.40 × 13,372,192.80
  4. Step 4: Simplify right side
    42,126,868.80x = 845,039,709,457,902.75
  5. Step 5: Solve for x
    x = 845,039,709,457,902.75/42,126,868.80
  6. Step 6: Final answer
    x = 20,059,399.94

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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.