Home / 1,315,052,253.36-1,972,861,076.52-382,391,307.12

Finding the Fourth Proportional to 1,315,052,253.36, 1,972,861,076.52 and 382,391,307.12

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Solution

The fourth proportional to 1,315,052,253.36, 1,972,861,076.52 and 382,391,307.12 is: 573,669,163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,052,253.36 : 1,972,861,076.52 = 382,391,307.12 : x
  2. Step 2: Convert to fraction form
    1,315,052,253.36/1,972,861,076.52 = 382,391,307.12/x
  3. Step 3: Cross multiply
    1,315,052,253.36x = 1,972,861,076.52 × 382,391,307.12
  4. Step 4: Simplify right side
    1,315,052,253.36x = 754,404,925,816,653,184
  5. Step 5: Solve for x
    x = 754,404,925,816,653,184/1,315,052,253.36
  6. Step 6: Final answer
    x = 573,669,163.25

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Double scale
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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.