Home / 390,048,178.37-585,273,418.10-182,807,643.11

Finding the Fourth Proportional to 390,048,178.37, 585,273,418.10 and 182,807,643.11

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Solution

The fourth proportional to 390,048,178.37, 585,273,418.10 and 182,807,643.11 is: 274,305,739.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,048,178.37 : 585,273,418.10 = 182,807,643.11 : x
  2. Step 2: Convert to fraction form
    390,048,178.37/585,273,418.10 = 182,807,643.11/x
  3. Step 3: Cross multiply
    390,048,178.37x = 585,273,418.10 × 182,807,643.11
  4. Step 4: Simplify right side
    390,048,178.37x = 106,992,454,138,343,776
  5. Step 5: Solve for x
    x = 106,992,454,138,343,776/390,048,178.37
  6. Step 6: Final answer
    x = 274,305,739.83

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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.