Home / 389,094,990.81-536,950,458.19-212,883,696.33

Finding the Fourth Proportional to 389,094,990.81, 536,950,458.19 and 212,883,696.33

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Solution

The fourth proportional to 389,094,990.81, 536,950,458.19 and 212,883,696.33 is: 293,779,156.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,094,990.81 : 536,950,458.19 = 212,883,696.33 : x
  2. Step 2: Convert to fraction form
    389,094,990.81/536,950,458.19 = 212,883,696.33/x
  3. Step 3: Cross multiply
    389,094,990.81x = 536,950,458.19 × 212,883,696.33
  4. Step 4: Simplify right side
    389,094,990.81x = 114,307,998,282,628,304
  5. Step 5: Solve for x
    x = 114,307,998,282,628,304/389,094,990.81
  6. Step 6: Final answer
    x = 293,779,156.72

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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.