Home / 540,536,408.88-810,868,385.52-405,082,726.80

Finding the Fourth Proportional to 540,536,408.88, 810,868,385.52 and 405,082,726.80

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Solution

The fourth proportional to 540,536,408.88, 810,868,385.52 and 405,082,726.80 is: 607,671,881.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,536,408.88 : 810,868,385.52 = 405,082,726.80 : x
  2. Step 2: Convert to fraction form
    540,536,408.88/810,868,385.52 = 405,082,726.80/x
  3. Step 3: Cross multiply
    540,536,408.88x = 810,868,385.52 × 405,082,726.80
  4. Step 4: Simplify right side
    540,536,408.88x = 328,468,776,682,355,264
  5. Step 5: Solve for x
    x = 328,468,776,682,355,264/540,536,408.88
  6. Step 6: Final answer
    x = 607,671,881.65

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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.