Home / 393,328,764.56-542,793,803.72-217,116,874.72

Finding the Fourth Proportional to 393,328,764.56, 542,793,803.72 and 217,116,874.72

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Solution

The fourth proportional to 393,328,764.56, 542,793,803.72 and 217,116,874.72 is: 299,621,347.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,328,764.56 : 542,793,803.72 = 217,116,874.72 : x
  2. Step 2: Convert to fraction form
    393,328,764.56/542,793,803.72 = 217,116,874.72/x
  3. Step 3: Cross multiply
    393,328,764.56x = 542,793,803.72 × 217,116,874.72
  4. Step 4: Simplify right side
    393,328,764.56x = 117,849,694,281,067,520
  5. Step 5: Solve for x
    x = 117,849,694,281,067,520/393,328,764.56
  6. Step 6: Final answer
    x = 299,621,347.08

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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.