Home / 338,998,663.47-508,522,657.62-142,064,398.92

Finding the Fourth Proportional to 338,998,663.47, 508,522,657.62 and 142,064,398.92

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Solution

The fourth proportional to 338,998,663.47, 508,522,657.62 and 142,064,398.92 is: 213,106,933.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,998,663.47 : 508,522,657.62 = 142,064,398.92 : x
  2. Step 2: Convert to fraction form
    338,998,663.47/508,522,657.62 = 142,064,398.92/x
  3. Step 3: Cross multiply
    338,998,663.47x = 508,522,657.62 × 142,064,398.92
  4. Step 4: Simplify right side
    338,998,663.47x = 72,242,965,691,986,256
  5. Step 5: Solve for x
    x = 72,242,965,691,986,256/338,998,663.47
  6. Step 6: Final answer
    x = 213,106,933.67

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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.