Home / 420,246,393.71-579,933,969.54-232,082,649.32

Finding the Fourth Proportional to 420,246,393.71, 579,933,969.54 and 232,082,649.32

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Solution

The fourth proportional to 420,246,393.71, 579,933,969.54 and 232,082,649.32 is: 320,270,712.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,246,393.71 : 579,933,969.54 = 232,082,649.32 : x
  2. Step 2: Convert to fraction form
    420,246,393.71/579,933,969.54 = 232,082,649.32/x
  3. Step 3: Cross multiply
    420,246,393.71x = 579,933,969.54 × 232,082,649.32
  4. Step 4: Simplify right side
    420,246,393.71x = 134,592,612,078,607,696
  5. Step 5: Solve for x
    x = 134,592,612,078,607,696/420,246,393.71
  6. Step 6: Final answer
    x = 320,270,712.84

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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.