Home / 2,991,834,977.20-4,487,752,465.80-810,801,113.20

Finding the Fourth Proportional to 2,991,834,977.20, 4,487,752,465.80 and 810,801,113.20

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Solution

The fourth proportional to 2,991,834,977.20, 4,487,752,465.80 and 810,801,113.20 is: 1,216,201,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991,834,977.20 : 4,487,752,465.80 = 810,801,113.20 : x
  2. Step 2: Convert to fraction form
    2,991,834,977.20/4,487,752,465.80 = 810,801,113.20/x
  3. Step 3: Cross multiply
    2,991,834,977.20x = 4,487,752,465.80 × 810,801,113.20
  4. Step 4: Simplify right side
    2,991,834,977.20x = 3,638,674,695,036,685,312
  5. Step 5: Solve for x
    x = 3,638,674,695,036,685,312/2,991,834,977.20
  6. Step 6: Final answer
    x = 1,216,201,669.80

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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.