Home / 74,195,999.20-111,293,998.80-65,976,378.40

Finding the Fourth Proportional to 74,195,999.20, 111,293,998.80 and 65,976,378.40

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Solution

The fourth proportional to 74,195,999.20, 111,293,998.80 and 65,976,378.40 is: 98,964,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,195,999.20 : 111,293,998.80 = 65,976,378.40 : x
  2. Step 2: Convert to fraction form
    74,195,999.20/111,293,998.80 = 65,976,378.40/x
  3. Step 3: Cross multiply
    74,195,999.20x = 111,293,998.80 × 65,976,378.40
  4. Step 4: Simplify right side
    74,195,999.20x = 7,342,774,978,477,946
  5. Step 5: Solve for x
    x = 7,342,774,978,477,946/74,195,999.20
  6. Step 6: Final answer
    x = 98,964,567.60

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1.5x scale

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.