Home / 107,838,645.60-161,757,968.40-47,189,992.80

Finding the Fourth Proportional to 107,838,645.60, 161,757,968.40 and 47,189,992.80

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Solution

The fourth proportional to 107,838,645.60, 161,757,968.40 and 47,189,992.80 is: 70,784,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,838,645.60 : 161,757,968.40 = 47,189,992.80 : x
  2. Step 2: Convert to fraction form
    107,838,645.60/161,757,968.40 = 47,189,992.80/x
  3. Step 3: Cross multiply
    107,838,645.60x = 161,757,968.40 × 47,189,992.80
  4. Step 4: Simplify right side
    107,838,645.60x = 7,633,357,364,138,627
  5. Step 5: Solve for x
    x = 7,633,357,364,138,627/107,838,645.60
  6. Step 6: Final answer
    x = 70,784,989.20

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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.