Home / 903,753,777.21-1,247,111,767.54-507,200,179.38

Finding the Fourth Proportional to 903,753,777.21, 1,247,111,767.54 and 507,200,179.38

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Solution

The fourth proportional to 903,753,777.21, 1,247,111,767.54 and 507,200,179.38 is: 699,897,835.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,753,777.21 : 1,247,111,767.54 = 507,200,179.38 : x
  2. Step 2: Convert to fraction form
    903,753,777.21/1,247,111,767.54 = 507,200,179.38/x
  3. Step 3: Cross multiply
    903,753,777.21x = 1,247,111,767.54 × 507,200,179.38
  4. Step 4: Simplify right side
    903,753,777.21x = 632,535,312,203,196,800
  5. Step 5: Solve for x
    x = 632,535,312,203,196,800/903,753,777.21
  6. Step 6: Final answer
    x = 699,897,835.18

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1.5x scale

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.