Home / 12,781,933,507.85-17,637,540,367.55-7,065,445,679.23

Finding the Fourth Proportional to 12,781,933,507.85, 17,637,540,367.55 and 7,065,445,679.23

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Solution

The fourth proportional to 12,781,933,507.85, 17,637,540,367.55 and 7,065,445,679.23 is: 9,749,470,477.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,933,507.85 : 17,637,540,367.55 = 7,065,445,679.23 : x
  2. Step 2: Convert to fraction form
    12,781,933,507.85/17,637,540,367.55 = 7,065,445,679.23/x
  3. Step 3: Cross multiply
    12,781,933,507.85x = 17,637,540,367.55 × 7,065,445,679.23
  4. Step 4: Simplify right side
    12,781,933,507.85x = 124,617,083,382,200,172,544
  5. Step 5: Solve for x
    x = 124,617,083,382,200,172,544/12,781,933,507.85
  6. Step 6: Final answer
    x = 9,749,470,477.66

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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.