Home / 561,338,979-774,561,732.81-323,138,119.56

Finding the Fourth Proportional to 561,338,979, 774,561,732.81 and 323,138,119.56

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Solution

The fourth proportional to 561,338,979, 774,561,732.81 and 323,138,119.56 is: 445,881,065.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,338,979 : 774,561,732.81 = 323,138,119.56 : x
  2. Step 2: Convert to fraction form
    561,338,979/774,561,732.81 = 323,138,119.56/x
  3. Step 3: Cross multiply
    561,338,979x = 774,561,732.81 × 323,138,119.56
  4. Step 4: Simplify right side
    561,338,979x = 250,290,421,823,358,528
  5. Step 5: Solve for x
    x = 250,290,421,823,358,528/561,338,979
  6. Step 6: Final answer
    x = 445,881,065.07

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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.