Home / 7,926,631,618.80-11,889,947,428.20-5,314,492,815.60

Finding the Fourth Proportional to 7,926,631,618.80, 11,889,947,428.20 and 5,314,492,815.60

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Solution

The fourth proportional to 7,926,631,618.80, 11,889,947,428.20 and 5,314,492,815.60 is: 7,971,739,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926,631,618.80 : 11,889,947,428.20 = 5,314,492,815.60 : x
  2. Step 2: Convert to fraction form
    7,926,631,618.80/11,889,947,428.20 = 5,314,492,815.60/x
  3. Step 3: Cross multiply
    7,926,631,618.80x = 11,889,947,428.20 × 5,314,492,815.60
  4. Step 4: Simplify right side
    7,926,631,618.80x = 63,189,040,185,030,606,848
  5. Step 5: Solve for x
    x = 63,189,040,185,030,606,848/7,926,631,618.80
  6. Step 6: Final answer
    x = 7,971,739,223.40

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Double scale
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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.