Home / 368,412,427.32-508,453,731.39-209,681,143.57

Finding the Fourth Proportional to 368,412,427.32, 508,453,731.39 and 209,681,143.57

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Solution

The fourth proportional to 368,412,427.32, 508,453,731.39 and 209,681,143.57 is: 289,385,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,412,427.32 : 508,453,731.39 = 209,681,143.57 : x
  2. Step 2: Convert to fraction form
    368,412,427.32/508,453,731.39 = 209,681,143.57/x
  3. Step 3: Cross multiply
    368,412,427.32x = 508,453,731.39 × 209,681,143.57
  4. Step 4: Simplify right side
    368,412,427.32x = 106,613,159,850,288,800
  5. Step 5: Solve for x
    x = 106,613,159,850,288,800/368,412,427.32
  6. Step 6: Final answer
    x = 289,385,351.70

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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.