Home / 72,319,698.76-99,801,909.36-39,280,594.08

Finding the Fourth Proportional to 72,319,698.76, 99,801,909.36 and 39,280,594.08

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Solution

The fourth proportional to 72,319,698.76, 99,801,909.36 and 39,280,594.08 is: 54,207,613.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,319,698.76 : 99,801,909.36 = 39,280,594.08 : x
  2. Step 2: Convert to fraction form
    72,319,698.76/99,801,909.36 = 39,280,594.08/x
  3. Step 3: Cross multiply
    72,319,698.76x = 99,801,909.36 × 39,280,594.08
  4. Step 4: Simplify right side
    72,319,698.76x = 3,920,278,289,979,112.50
  5. Step 5: Solve for x
    x = 3,920,278,289,979,112.50/72,319,698.76
  6. Step 6: Final answer
    x = 54,207,613.65

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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.