Home / 42,686,975.40-64,020,879.90-19,635,771.24

Finding the Fourth Proportional to 42,686,975.40, 64,020,879.90 and 19,635,771.24

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Solution

The fourth proportional to 42,686,975.40, 64,020,879.90 and 19,635,771.24 is: 29,449,248.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,686,975.40 : 64,020,879.90 = 19,635,771.24 : x
  2. Step 2: Convert to fraction form
    42,686,975.40/64,020,879.90 = 19,635,771.24/x
  3. Step 3: Cross multiply
    42,686,975.40x = 64,020,879.90 × 19,635,771.24
  4. Step 4: Simplify right side
    42,686,975.40x = 1,257,099,352,299,914
  5. Step 5: Solve for x
    x = 1,257,099,352,299,914/42,686,975.40
  6. Step 6: Final answer
    x = 29,449,248.64

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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.