Home / 75,816,040.80-113,724,061.20-74,304,386.40

Finding the Fourth Proportional to 75,816,040.80, 113,724,061.20 and 74,304,386.40

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Solution

The fourth proportional to 75,816,040.80, 113,724,061.20 and 74,304,386.40 is: 111,456,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,816,040.80 : 113,724,061.20 = 74,304,386.40 : x
  2. Step 2: Convert to fraction form
    75,816,040.80/113,724,061.20 = 74,304,386.40/x
  3. Step 3: Cross multiply
    75,816,040.80x = 113,724,061.20 × 74,304,386.40
  4. Step 4: Simplify right side
    75,816,040.80x = 8,450,196,586,382,049
  5. Step 5: Solve for x
    x = 8,450,196,586,382,049/75,816,040.80
  6. Step 6: Final answer
    x = 111,456,579.60

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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.