Home / 78,796,858.22-118,241,345.54-56,915,660.78

Finding the Fourth Proportional to 78,796,858.22, 118,241,345.54 and 56,915,660.78

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Solution

The fourth proportional to 78,796,858.22, 118,241,345.54 and 56,915,660.78 is: 85,406,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,796,858.22 : 118,241,345.54 = 56,915,660.78 : x
  2. Step 2: Convert to fraction form
    78,796,858.22/118,241,345.54 = 56,915,660.78/x
  3. Step 3: Cross multiply
    78,796,858.22x = 118,241,345.54 × 56,915,660.78
  4. Step 4: Simplify right side
    78,796,858.22x = 6,729,784,312,587,044
  5. Step 5: Solve for x
    x = 6,729,784,312,587,044/78,796,858.22
  6. Step 6: Final answer
    x = 85,406,759.42

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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.