Home / 42,219,072.81-63,333,333.14-13,458,535.65

Finding the Fourth Proportional to 42,219,072.81, 63,333,333.14 and 13,458,535.65

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Solution

The fourth proportional to 42,219,072.81, 63,333,333.14 and 13,458,535.65 is: 20,189,309.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,219,072.81 : 63,333,333.14 = 13,458,535.65 : x
  2. Step 2: Convert to fraction form
    42,219,072.81/63,333,333.14 = 13,458,535.65/x
  3. Step 3: Cross multiply
    42,219,072.81x = 63,333,333.14 × 13,458,535.65
  4. Step 4: Simplify right side
    42,219,072.81x = 852,373,921,830,723.75
  5. Step 5: Solve for x
    x = 852,373,921,830,723.75/42,219,072.81
  6. Step 6: Final answer
    x = 20,189,309.36

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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.