Home / 1,609,127,860.86-2,220,397,218.81-931,061,370.42

Finding the Fourth Proportional to 1,609,127,860.86, 2,220,397,218.81 and 931,061,370.42

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Solution

The fourth proportional to 1,609,127,860.86, 2,220,397,218.81 and 931,061,370.42 is: 1,284,749,414.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609,127,860.86 : 2,220,397,218.81 = 931,061,370.42 : x
  2. Step 2: Convert to fraction form
    1,609,127,860.86/2,220,397,218.81 = 931,061,370.42/x
  3. Step 3: Cross multiply
    1,609,127,860.86x = 2,220,397,218.81 × 931,061,370.42
  4. Step 4: Simplify right side
    1,609,127,860.86x = 2,067,326,077,421,995,008
  5. Step 5: Solve for x
    x = 2,067,326,077,421,995,008/1,609,127,860.86
  6. Step 6: Final answer
    x = 1,284,749,414.70

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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.