Home / 889,386,993.74-1,227,354,167.70-492,935,578.36

Finding the Fourth Proportional to 889,386,993.74, 1,227,354,167.70 and 492,935,578.36

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Solution

The fourth proportional to 889,386,993.74, 1,227,354,167.70 and 492,935,578.36 is: 680,251,162.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,386,993.74 : 1,227,354,167.70 = 492,935,578.36 : x
  2. Step 2: Convert to fraction form
    889,386,993.74/1,227,354,167.70 = 492,935,578.36/x
  3. Step 3: Cross multiply
    889,386,993.74x = 1,227,354,167.70 × 492,935,578.36
  4. Step 4: Simplify right side
    889,386,993.74x = 605,006,536,507,756,032
  5. Step 5: Solve for x
    x = 605,006,536,507,756,032/889,386,993.74
  6. Step 6: Final answer
    x = 680,251,162.62

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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.