Home / 614,872,748.21-921,568,109.78-282,420,997.53

Finding the Fourth Proportional to 614,872,748.21, 921,568,109.78 and 282,420,997.53

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Solution

The fourth proportional to 614,872,748.21, 921,568,109.78 and 282,420,997.53 is: 423,291,137.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,872,748.21 : 921,568,109.78 = 282,420,997.53 : x
  2. Step 2: Convert to fraction form
    614,872,748.21/921,568,109.78 = 282,420,997.53/x
  3. Step 3: Cross multiply
    614,872,748.21x = 921,568,109.78 × 282,420,997.53
  4. Step 4: Simplify right side
    614,872,748.21x = 260,270,184,854,492,000
  5. Step 5: Solve for x
    x = 260,270,184,854,492,000/614,872,748.21
  6. Step 6: Final answer
    x = 423,291,137.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.