Home / 684,359,491.44-1,026,129,289.56-217,819,394.76

Finding the Fourth Proportional to 684,359,491.44, 1,026,129,289.56 and 217,819,394.76

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Solution

The fourth proportional to 684,359,491.44, 1,026,129,289.56 and 217,819,394.76 is: 326,598,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,359,491.44 : 1,026,129,289.56 = 217,819,394.76 : x
  2. Step 2: Convert to fraction form
    684,359,491.44/1,026,129,289.56 = 217,819,394.76/x
  3. Step 3: Cross multiply
    684,359,491.44x = 1,026,129,289.56 × 217,819,394.76
  4. Step 4: Simplify right side
    684,359,491.44x = 223,510,860,797,467,968
  5. Step 5: Solve for x
    x = 223,510,860,797,467,968/684,359,491.44
  6. Step 6: Final answer
    x = 326,598,613.15

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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.