Home / 321,646,712.67-482,674,127.78-137,415,574.78

Finding the Fourth Proportional to 321,646,712.67, 482,674,127.78 and 137,415,574.78

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Solution

The fourth proportional to 321,646,712.67, 482,674,127.78 and 137,415,574.78 is: 206,210,541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,646,712.67 : 482,674,127.78 = 137,415,574.78 : x
  2. Step 2: Convert to fraction form
    321,646,712.67/482,674,127.78 = 137,415,574.78/x
  3. Step 3: Cross multiply
    321,646,712.67x = 482,674,127.78 × 137,415,574.78
  4. Step 4: Simplify right side
    321,646,712.67x = 66,326,942,699,460,728
  5. Step 5: Solve for x
    x = 66,326,942,699,460,728/321,646,712.67
  6. Step 6: Final answer
    x = 206,210,541.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.