Home / 389,391,773,034.42-537,363,801,906.12-215,779,812,465.12

Finding the Fourth Proportional to 389,391,773,034.42, 537,363,801,906.12 and 215,779,812,465.12

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Solution

The fourth proportional to 389,391,773,034.42, 537,363,801,906.12 and 215,779,812,465.12 is: 297,777,889,597.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,391,773,034.42 : 537,363,801,906.12 = 215,779,812,465.12 : x
  2. Step 2: Convert to fraction form
    389,391,773,034.42/537,363,801,906.12 = 215,779,812,465.12/x
  3. Step 3: Cross multiply
    389,391,773,034.42x = 537,363,801,906.12 × 215,779,812,465.12
  4. Step 4: Simplify right side
    389,391,773,034.42x = 115,952,260,400,846,456,487,936
  5. Step 5: Solve for x
    x = 115,952,260,400,846,456,487,936/389,391,773,034.42
  6. Step 6: Final answer
    x = 297,777,889,597.57

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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.