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Finding the Fourth Proportional to 555,254,322.89, 765,804,174.50 and 488,129,758.76

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Solution

The fourth proportional to 555,254,322.89, 765,804,174.50 and 488,129,758.76 is: 673,226,288.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,254,322.89 : 765,804,174.50 = 488,129,758.76 : x
  2. Step 2: Convert to fraction form
    555,254,322.89/765,804,174.50 = 488,129,758.76/x
  3. Step 3: Cross multiply
    555,254,322.89x = 765,804,174.50 × 488,129,758.76
  4. Step 4: Simplify right side
    555,254,322.89x = 373,811,806,955,559,808
  5. Step 5: Solve for x
    x = 373,811,806,955,559,808/555,254,322.89
  6. Step 6: Final answer
    x = 673,226,288.47

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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.