Home / 1,432,119,081.09-2,148,179,218.52-644,252,479.32

Finding the Fourth Proportional to 1,432,119,081.09, 2,148,179,218.52 and 644,252,479.32

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Solution

The fourth proportional to 1,432,119,081.09, 2,148,179,218.52 and 644,252,479.32 is: 966,378,987.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,119,081.09 : 2,148,179,218.52 = 644,252,479.32 : x
  2. Step 2: Convert to fraction form
    1,432,119,081.09/2,148,179,218.52 = 644,252,479.32/x
  3. Step 3: Cross multiply
    1,432,119,081.09x = 2,148,179,218.52 × 644,252,479.32
  4. Step 4: Simplify right side
    1,432,119,081.09x = 1,383,969,787,560,044,544
  5. Step 5: Solve for x
    x = 1,383,969,787,560,044,544/1,432,119,081.09
  6. Step 6: Final answer
    x = 966,378,987.50

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1.5x scale

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.