Home / 72,863,302.40-109,224,969.60-42,126,329.60

Finding the Fourth Proportional to 72,863,302.40, 109,224,969.60 and 42,126,329.60

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Solution

The fourth proportional to 72,863,302.40, 109,224,969.60 and 42,126,329.60 is: 63,149,032.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,863,302.40 : 109,224,969.60 = 42,126,329.60 : x
  2. Step 2: Convert to fraction form
    72,863,302.40/109,224,969.60 = 42,126,329.60/x
  3. Step 3: Cross multiply
    72,863,302.40x = 109,224,969.60 × 42,126,329.60
  4. Step 4: Simplify right side
    72,863,302.40x = 4,601,247,069,919,580
  5. Step 5: Solve for x
    x = 4,601,247,069,919,580/72,863,302.40
  6. Step 6: Final answer
    x = 63,149,032.76

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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.