Home / 140,919,128.30-211,378,692.45-80,452,952.30

Finding the Fourth Proportional to 140,919,128.30, 211,378,692.45 and 80,452,952.30

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Solution

The fourth proportional to 140,919,128.30, 211,378,692.45 and 80,452,952.30 is: 120,679,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,919,128.30 : 211,378,692.45 = 80,452,952.30 : x
  2. Step 2: Convert to fraction form
    140,919,128.30/211,378,692.45 = 80,452,952.30/x
  3. Step 3: Cross multiply
    140,919,128.30x = 211,378,692.45 × 80,452,952.30
  4. Step 4: Simplify right side
    140,919,128.30x = 17,006,039,860,916,218
  5. Step 5: Solve for x
    x = 17,006,039,860,916,218/140,919,128.30
  6. Step 6: Final answer
    x = 120,679,428.45

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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.