Home / 345,151,541.75-515,836,095.66-251,974,729.94

Finding the Fourth Proportional to 345,151,541.75, 515,836,095.66 and 251,974,729.94

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Solution

The fourth proportional to 345,151,541.75, 515,836,095.66 and 251,974,729.94 is: 376,581,429.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,151,541.75 : 515,836,095.66 = 251,974,729.94 : x
  2. Step 2: Convert to fraction form
    345,151,541.75/515,836,095.66 = 251,974,729.94/x
  3. Step 3: Cross multiply
    345,151,541.75x = 515,836,095.66 × 251,974,729.94
  4. Step 4: Simplify right side
    345,151,541.75x = 129,977,660,894,653,328
  5. Step 5: Solve for x
    x = 129,977,660,894,653,328/345,151,541.75
  6. Step 6: Final answer
    x = 376,581,429.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.