Home / 814,634,719.80-1,221,952,079.70-201,218,945.55

Finding the Fourth Proportional to 814,634,719.80, 1,221,952,079.70 and 201,218,945.55

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Solution

The fourth proportional to 814,634,719.80, 1,221,952,079.70 and 201,218,945.55 is: 301,828,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,634,719.80 : 1,221,952,079.70 = 201,218,945.55 : x
  2. Step 2: Convert to fraction form
    814,634,719.80/1,221,952,079.70 = 201,218,945.55/x
  3. Step 3: Cross multiply
    814,634,719.80x = 1,221,952,079.70 × 201,218,945.55
  4. Step 4: Simplify right side
    814,634,719.80x = 245,879,908,989,863,584
  5. Step 5: Solve for x
    x = 245,879,908,989,863,584/814,634,719.80
  6. Step 6: Final answer
    x = 301,828,418.33

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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.