Home / 42,872,001.20-64,308,001.80-25,865,889.20

Finding the Fourth Proportional to 42,872,001.20, 64,308,001.80 and 25,865,889.20

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Solution

The fourth proportional to 42,872,001.20, 64,308,001.80 and 25,865,889.20 is: 38,798,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,872,001.20 : 64,308,001.80 = 25,865,889.20 : x
  2. Step 2: Convert to fraction form
    42,872,001.20/64,308,001.80 = 25,865,889.20/x
  3. Step 3: Cross multiply
    42,872,001.20x = 64,308,001.80 × 25,865,889.20
  4. Step 4: Simplify right side
    42,872,001.20x = 1,663,383,649,232,200.50
  5. Step 5: Solve for x
    x = 1,663,383,649,232,200.50/42,872,001.20
  6. Step 6: Final answer
    x = 38,798,833.80

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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.