Home / 192,869,889.36-289,304,046.72-70,047,969.36

Finding the Fourth Proportional to 192,869,889.36, 289,304,046.72 and 70,047,969.36

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Solution

The fourth proportional to 192,869,889.36, 289,304,046.72 and 70,047,969.36 is: 105,071,668.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,869,889.36 : 289,304,046.72 = 70,047,969.36 : x
  2. Step 2: Convert to fraction form
    192,869,889.36/289,304,046.72 = 70,047,969.36/x
  3. Step 3: Cross multiply
    192,869,889.36x = 289,304,046.72 × 70,047,969.36
  4. Step 4: Simplify right side
    192,869,889.36x = 20,265,161,000,366,572
  5. Step 5: Solve for x
    x = 20,265,161,000,366,572/192,869,889.36
  6. Step 6: Final answer
    x = 105,071,668.10

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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.