Home / 256,462,423.20-384,664,110.30-74,709,601.20

Finding the Fourth Proportional to 256,462,423.20, 384,664,110.30 and 74,709,601.20

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Solution

The fourth proportional to 256,462,423.20, 384,664,110.30 and 74,709,601.20 is: 112,055,801.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,462,423.20 : 384,664,110.30 = 74,709,601.20 : x
  2. Step 2: Convert to fraction form
    256,462,423.20/384,664,110.30 = 74,709,601.20/x
  3. Step 3: Cross multiply
    256,462,423.20x = 384,664,110.30 × 74,709,601.20
  4. Step 4: Simplify right side
    256,462,423.20x = 28,738,102,276,465,816
  5. Step 5: Solve for x
    x = 28,738,102,276,465,816/256,462,423.20
  6. Step 6: Final answer
    x = 112,055,801.07

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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.