Home / 1,201,593,511.80-1,802,709,132.30-425,158,210.80

Finding the Fourth Proportional to 1,201,593,511.80, 1,802,709,132.30 and 425,158,210.80

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Solution

The fourth proportional to 1,201,593,511.80, 1,802,709,132.30 and 425,158,210.80 is: 637,850,139.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,593,511.80 : 1,802,709,132.30 = 425,158,210.80 : x
  2. Step 2: Convert to fraction form
    1,201,593,511.80/1,802,709,132.30 = 425,158,210.80/x
  3. Step 3: Cross multiply
    1,201,593,511.80x = 1,802,709,132.30 × 425,158,210.80
  4. Step 4: Simplify right side
    1,201,593,511.80x = 766,436,589,281,488,512
  5. Step 5: Solve for x
    x = 766,436,589,281,488,512/1,201,593,511.80
  6. Step 6: Final answer
    x = 637,850,139.63

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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.