Home / 161,998,019.51-223,512,968.80-92,357,990.87

Finding the Fourth Proportional to 161,998,019.51, 223,512,968.80 and 92,357,990.87

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Solution

The fourth proportional to 161,998,019.51, 223,512,968.80 and 92,357,990.87 is: 127,428,772.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,998,019.51 : 223,512,968.80 = 92,357,990.87 : x
  2. Step 2: Convert to fraction form
    161,998,019.51/223,512,968.80 = 92,357,990.87/x
  3. Step 3: Cross multiply
    161,998,019.51x = 223,512,968.80 × 92,357,990.87
  4. Step 4: Simplify right side
    161,998,019.51x = 20,643,208,731,756,996
  5. Step 5: Solve for x
    x = 20,643,208,731,756,996/161,998,019.51
  6. Step 6: Final answer
    x = 127,428,772.24

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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.