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Finding the Fourth Proportional to 556,652,861.01, 768,159,901.85 and 309,150,158.49

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Solution

The fourth proportional to 556,652,861.01, 768,159,901.85 and 309,150,158.49 is: 426,615,530.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,652,861.01 : 768,159,901.85 = 309,150,158.49 : x
  2. Step 2: Convert to fraction form
    556,652,861.01/768,159,901.85 = 309,150,158.49/x
  3. Step 3: Cross multiply
    556,652,861.01x = 768,159,901.85 × 309,150,158.49
  4. Step 4: Simplify right side
    556,652,861.01x = 237,476,755,401,044,608
  5. Step 5: Solve for x
    x = 237,476,755,401,044,608/556,652,861.01
  6. Step 6: Final answer
    x = 426,615,530.14

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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.