Home / 74,304,004.80-111,456,007.20-45,204,657.60

Finding the Fourth Proportional to 74,304,004.80, 111,456,007.20 and 45,204,657.60

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Solution

The fourth proportional to 74,304,004.80, 111,456,007.20 and 45,204,657.60 is: 67,806,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,304,004.80 : 111,456,007.20 = 45,204,657.60 : x
  2. Step 2: Convert to fraction form
    74,304,004.80/111,456,007.20 = 45,204,657.60/x
  3. Step 3: Cross multiply
    74,304,004.80x = 111,456,007.20 × 45,204,657.60
  4. Step 4: Simplify right side
    74,304,004.80x = 5,038,330,642,939,135
  5. Step 5: Solve for x
    x = 5,038,330,642,939,135/74,304,004.80
  6. Step 6: Final answer
    x = 67,806,986.40

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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.