Home / 72,193,010.91-108,289,347.95-47,421,783.15

Finding the Fourth Proportional to 72,193,010.91, 108,289,347.95 and 47,421,783.15

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Solution

The fourth proportional to 72,193,010.91, 108,289,347.95 and 47,421,783.15 is: 71,132,564.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,193,010.91 : 108,289,347.95 = 47,421,783.15 : x
  2. Step 2: Convert to fraction form
    72,193,010.91/108,289,347.95 = 47,421,783.15/x
  3. Step 3: Cross multiply
    72,193,010.91x = 108,289,347.95 × 47,421,783.15
  4. Step 4: Simplify right side
    72,193,010.91x = 5,135,273,975,713,940
  5. Step 5: Solve for x
    x = 5,135,273,975,713,940/72,193,010.91
  6. Step 6: Final answer
    x = 71,132,564.10

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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.