Home / 13,116,821,972.70-19,675,232,959.05-11,851,567,239.90

Finding the Fourth Proportional to 13,116,821,972.70, 19,675,232,959.05 and 11,851,567,239.90

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Solution

The fourth proportional to 13,116,821,972.70, 19,675,232,959.05 and 11,851,567,239.90 is: 17,777,350,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116,821,972.70 : 19,675,232,959.05 = 11,851,567,239.90 : x
  2. Step 2: Convert to fraction form
    13,116,821,972.70/19,675,232,959.05 = 11,851,567,239.90/x
  3. Step 3: Cross multiply
    13,116,821,972.70x = 19,675,232,959.05 × 11,851,567,239.90
  4. Step 4: Simplify right side
    13,116,821,972.70x = 233,182,346,374,877,708,288
  5. Step 5: Solve for x
    x = 233,182,346,374,877,708,288/13,116,821,972.70
  6. Step 6: Final answer
    x = 17,777,350,859.85

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Double scale
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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.