Home / 72,319,675.27-99,801,884.96-39,280,243.63

Finding the Fourth Proportional to 72,319,675.27, 99,801,884.96 and 39,280,243.63

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Solution

The fourth proportional to 72,319,675.27, 99,801,884.96 and 39,280,243.63 is: 54,207,134.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,319,675.27 : 99,801,884.96 = 39,280,243.63 : x
  2. Step 2: Convert to fraction form
    72,319,675.27/99,801,884.96 = 39,280,243.63/x
  3. Step 3: Cross multiply
    72,319,675.27x = 99,801,884.96 × 39,280,243.63
  4. Step 4: Simplify right side
    72,319,675.27x = 3,920,242,355,765,632
  5. Step 5: Solve for x
    x = 3,920,242,355,765,632/72,319,675.27
  6. Step 6: Final answer
    x = 54,207,134.38

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1.5x scale

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.