Home / 378,731,032.70-528,932,044.15-378,731,032.70

Finding the Fourth Proportional to 378,731,032.70, 528,932,044.15 and 378,731,032.70

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Solution

The fourth proportional to 378,731,032.70, 528,932,044.15 and 378,731,032.70 is: 528,932,044.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,731,032.70 : 528,932,044.15 = 378,731,032.70 : x
  2. Step 2: Convert to fraction form
    378,731,032.70/528,932,044.15 = 378,731,032.70/x
  3. Step 3: Cross multiply
    378,731,032.70x = 528,932,044.15 × 378,731,032.70
  4. Step 4: Simplify right side
    378,731,032.70x = 200,322,979,309,051,488
  5. Step 5: Solve for x
    x = 200,322,979,309,051,488/378,731,032.70
  6. Step 6: Final answer
    x = 528,932,044.15

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.