Home / 903,753,776.21-1,247,111,766.16-507,200,178.38

Finding the Fourth Proportional to 903,753,776.21, 1,247,111,766.16 and 507,200,178.38

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Solution

The fourth proportional to 903,753,776.21, 1,247,111,766.16 and 507,200,178.38 is: 699,897,833.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,753,776.21 : 1,247,111,766.16 = 507,200,178.38 : x
  2. Step 2: Convert to fraction form
    903,753,776.21/1,247,111,766.16 = 507,200,178.38/x
  3. Step 3: Cross multiply
    903,753,776.21x = 1,247,111,766.16 × 507,200,178.38
  4. Step 4: Simplify right side
    903,753,776.21x = 632,535,310,248,645,248
  5. Step 5: Solve for x
    x = 632,535,310,248,645,248/903,753,776.21
  6. Step 6: Final answer
    x = 699,897,833.79

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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.