Home / 74,195,999.40-111,293,999.10-66,259,813.80

Finding the Fourth Proportional to 74,195,999.40, 111,293,999.10 and 66,259,813.80

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Solution

The fourth proportional to 74,195,999.40, 111,293,999.10 and 66,259,813.80 is: 99,389,720.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,195,999.40 : 111,293,999.10 = 66,259,813.80 : x
  2. Step 2: Convert to fraction form
    74,195,999.40/111,293,999.10 = 66,259,813.80/x
  3. Step 3: Cross multiply
    74,195,999.40x = 111,293,999.10 × 66,259,813.80
  4. Step 4: Simplify right side
    74,195,999.40x = 7,374,319,657,423,367
  5. Step 5: Solve for x
    x = 7,374,319,657,423,367/74,195,999.40
  6. Step 6: Final answer
    x = 99,389,720.70

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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.