Home / 74,196,007.20-111,294,010.80-65,976,386.40

Finding the Fourth Proportional to 74,196,007.20, 111,294,010.80 and 65,976,386.40

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Solution

The fourth proportional to 74,196,007.20, 111,294,010.80 and 65,976,386.40 is: 98,964,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,196,007.20 : 111,294,010.80 = 65,976,386.40 : x
  2. Step 2: Convert to fraction form
    74,196,007.20/111,294,010.80 = 65,976,386.40/x
  3. Step 3: Cross multiply
    74,196,007.20x = 111,294,010.80 × 65,976,386.40
  4. Step 4: Simplify right side
    74,196,007.20x = 7,342,776,660,546,573
  5. Step 5: Solve for x
    x = 7,342,776,660,546,573/74,196,007.20
  6. Step 6: Final answer
    x = 98,964,579.60

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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.