Home / 285,368,803.29-393,810,964.07-154,988,611.29

Finding the Fourth Proportional to 285,368,803.29, 393,810,964.07 and 154,988,611.29

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Solution

The fourth proportional to 285,368,803.29, 393,810,964.07 and 154,988,611.29 is: 213,885,378.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,368,803.29 : 393,810,964.07 = 154,988,611.29 : x
  2. Step 2: Convert to fraction form
    285,368,803.29/393,810,964.07 = 154,988,611.29/x
  3. Step 3: Cross multiply
    285,368,803.29x = 393,810,964.07 × 154,988,611.29
  4. Step 4: Simplify right side
    285,368,803.29x = 61,036,214,431,985,384
  5. Step 5: Solve for x
    x = 61,036,214,431,985,384/285,368,803.29
  6. Step 6: Final answer
    x = 213,885,378.25

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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.