Home / 369,345,453.18-509,697,221.43-202,097,427.54

Finding the Fourth Proportional to 369,345,453.18, 509,697,221.43 and 202,097,427.54

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Solution

The fourth proportional to 369,345,453.18, 509,697,221.43 and 202,097,427.54 is: 278,894,721.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,345,453.18 : 509,697,221.43 = 202,097,427.54 : x
  2. Step 2: Convert to fraction form
    369,345,453.18/509,697,221.43 = 202,097,427.54/x
  3. Step 3: Cross multiply
    369,345,453.18x = 509,697,221.43 × 202,097,427.54
  4. Step 4: Simplify right side
    369,345,453.18x = 103,008,497,275,288,752
  5. Step 5: Solve for x
    x = 103,008,497,275,288,752/369,345,453.18
  6. Step 6: Final answer
    x = 278,894,721.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.