Home / 78,380,641.23-108,005,904.03-60,631,762.42

Finding the Fourth Proportional to 78,380,641.23, 108,005,904.03 and 60,631,762.42

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Solution

The fourth proportional to 78,380,641.23, 108,005,904.03 and 60,631,762.42 is: 83,548,542.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,380,641.23 : 108,005,904.03 = 60,631,762.42 : x
  2. Step 2: Convert to fraction form
    78,380,641.23/108,005,904.03 = 60,631,762.42/x
  3. Step 3: Cross multiply
    78,380,641.23x = 108,005,904.03 × 60,631,762.42
  4. Step 4: Simplify right side
    78,380,641.23x = 6,548,588,313,104,281
  5. Step 5: Solve for x
    x = 6,548,588,313,104,281/78,380,641.23
  6. Step 6: Final answer
    x = 83,548,542.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.