Home / 13,122,992,312.24-18,109,729,388.76-7,182,544,814.96

Finding the Fourth Proportional to 13,122,992,312.24, 18,109,729,388.76 and 7,182,544,814.96

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Solution

The fourth proportional to 13,122,992,312.24, 18,109,729,388.76 and 7,182,544,814.96 is: 9,911,911,843.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,992,312.24 : 18,109,729,388.76 = 7,182,544,814.96 : x
  2. Step 2: Convert to fraction form
    13,122,992,312.24/18,109,729,388.76 = 7,182,544,814.96/x
  3. Step 3: Cross multiply
    13,122,992,312.24x = 18,109,729,388.76 × 7,182,544,814.96
  4. Step 4: Simplify right side
    13,122,992,312.24x = 130,073,942,921,566,863,360
  5. Step 5: Solve for x
    x = 130,073,942,921,566,863,360/13,122,992,312.24
  6. Step 6: Final answer
    x = 9,911,911,843.48

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Double scale
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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.