Home / 15,009,760,807.85-20,713,509,250.08-8,143,157,081.15

Finding the Fourth Proportional to 15,009,760,807.85, 20,713,509,250.08 and 8,143,157,081.15

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Solution

The fourth proportional to 15,009,760,807.85, 20,713,509,250.08 and 8,143,157,081.15 is: 11,237,578,112.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009,760,807.85 : 20,713,509,250.08 = 8,143,157,081.15 : x
  2. Step 2: Convert to fraction form
    15,009,760,807.85/20,713,509,250.08 = 8,143,157,081.15/x
  3. Step 3: Cross multiply
    15,009,760,807.85x = 20,713,509,250.08 × 8,143,157,081.15
  4. Step 4: Simplify right side
    15,009,760,807.85x = 168,673,359,525,151,440,896
  5. Step 5: Solve for x
    x = 168,673,359,525,151,440,896/15,009,760,807.85
  6. Step 6: Final answer
    x = 11,237,578,112.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.