Home / 1,150,565,388.15-1,587,779,550.57-621,929,381.28

Finding the Fourth Proportional to 1,150,565,388.15, 1,587,779,550.57 and 621,929,381.28

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Solution

The fourth proportional to 1,150,565,388.15, 1,587,779,550.57 and 621,929,381.28 is: 858,262,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150,565,388.15 : 1,587,779,550.57 = 621,929,381.28 : x
  2. Step 2: Convert to fraction form
    1,150,565,388.15/1,587,779,550.57 = 621,929,381.28/x
  3. Step 3: Cross multiply
    1,150,565,388.15x = 1,587,779,550.57 × 621,929,381.28
  4. Step 4: Simplify right side
    1,150,565,388.15x = 987,486,753,495,036,544
  5. Step 5: Solve for x
    x = 987,486,753,495,036,544/1,150,565,388.15
  6. Step 6: Final answer
    x = 858,262,175.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.