Home / 28,885,896,019.20-43,328,844,028.80-18,774,221,256.30

Finding the Fourth Proportional to 28,885,896,019.20, 43,328,844,028.80 and 18,774,221,256.30

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Solution

The fourth proportional to 28,885,896,019.20, 43,328,844,028.80 and 18,774,221,256.30 is: 28,161,331,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,885,896,019.20 : 43,328,844,028.80 = 18,774,221,256.30 : x
  2. Step 2: Convert to fraction form
    28,885,896,019.20/43,328,844,028.80 = 18,774,221,256.30/x
  3. Step 3: Cross multiply
    28,885,896,019.20x = 43,328,844,028.80 × 18,774,221,256.30
  4. Step 4: Simplify right side
    28,885,896,019.20x = 813,465,304,576,404,357,120
  5. Step 5: Solve for x
    x = 813,465,304,576,404,357,120/28,885,896,019.20
  6. Step 6: Final answer
    x = 28,161,331,884.45

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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.