Home / 520,907,507.90-718,853,050.90-282,752,537.72

Finding the Fourth Proportional to 520,907,507.90, 718,853,050.90 and 282,752,537.72

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Solution

The fourth proportional to 520,907,507.90, 718,853,050.90 and 282,752,537.72 is: 390,198,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,907,507.90 : 718,853,050.90 = 282,752,537.72 : x
  2. Step 2: Convert to fraction form
    520,907,507.90/718,853,050.90 = 282,752,537.72/x
  3. Step 3: Cross multiply
    520,907,507.90x = 718,853,050.90 × 282,752,537.72
  4. Step 4: Simplify right side
    520,907,507.90x = 203,257,524,384,731,264
  5. Step 5: Solve for x
    x = 203,257,524,384,731,264/520,907,507.90
  6. Step 6: Final answer
    x = 390,198,876.58

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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.