Home / 684,359,473.28-1,026,129,262.44-217,819,376.60

Finding the Fourth Proportional to 684,359,473.28, 1,026,129,262.44 and 217,819,376.60

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Solution

The fourth proportional to 684,359,473.28, 1,026,129,262.44 and 217,819,376.60 is: 326,598,585.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,359,473.28 : 1,026,129,262.44 = 217,819,376.60 : x
  2. Step 2: Convert to fraction form
    684,359,473.28/1,026,129,262.44 = 217,819,376.60/x
  3. Step 3: Cross multiply
    684,359,473.28x = 1,026,129,262.44 × 217,819,376.60
  4. Step 4: Simplify right side
    684,359,473.28x = 223,510,836,255,698,592
  5. Step 5: Solve for x
    x = 223,510,836,255,698,592/684,359,473.28
  6. Step 6: Final answer
    x = 326,598,585.95

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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.