Home / 1,387,418,150.60-2,081,249,520.95-391,447,904.37

Finding the Fourth Proportional to 1,387,418,150.60, 2,081,249,520.95 and 391,447,904.37

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Solution

The fourth proportional to 1,387,418,150.60, 2,081,249,520.95 and 391,447,904.37 is: 587,206,361.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,418,150.60 : 2,081,249,520.95 = 391,447,904.37 : x
  2. Step 2: Convert to fraction form
    1,387,418,150.60/2,081,249,520.95 = 391,447,904.37/x
  3. Step 3: Cross multiply
    1,387,418,150.60x = 2,081,249,520.95 × 391,447,904.37
  4. Step 4: Simplify right side
    1,387,418,150.60x = 814,700,763,446,944,000
  5. Step 5: Solve for x
    x = 814,700,763,446,944,000/1,387,418,150.60
  6. Step 6: Final answer
    x = 587,206,361.03

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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.