Home / 1,167,901,251.81-1,611,713,778.29-666,135,451.29

Finding the Fourth Proportional to 1,167,901,251.81, 1,611,713,778.29 and 666,135,451.29

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Solution

The fourth proportional to 1,167,901,251.81, 1,611,713,778.29 and 666,135,451.29 is: 919,272,655.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,901,251.81 : 1,611,713,778.29 = 666,135,451.29 : x
  2. Step 2: Convert to fraction form
    1,167,901,251.81/1,611,713,778.29 = 666,135,451.29/x
  3. Step 3: Cross multiply
    1,167,901,251.81x = 1,611,713,778.29 × 666,135,451.29
  4. Step 4: Simplify right side
    1,167,901,251.81x = 1,073,619,685,048,189,440
  5. Step 5: Solve for x
    x = 1,073,619,685,048,189,440/1,167,901,251.81
  6. Step 6: Final answer
    x = 919,272,655.44

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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.