Home / 516,228,832.37-712,386,819.12-281,281,423.48

Finding the Fourth Proportional to 516,228,832.37, 712,386,819.12 and 281,281,423.48

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Solution

The fourth proportional to 516,228,832.37, 712,386,819.12 and 281,281,423.48 is: 388,163,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,228,832.37 : 712,386,819.12 = 281,281,423.48 : x
  2. Step 2: Convert to fraction form
    516,228,832.37/712,386,819.12 = 281,281,423.48/x
  3. Step 3: Cross multiply
    516,228,832.37x = 712,386,819.12 × 281,281,423.48
  4. Step 4: Simplify right side
    516,228,832.37x = 200,381,178,550,462,880
  5. Step 5: Solve for x
    x = 200,381,178,550,462,880/516,228,832.37
  6. Step 6: Final answer
    x = 388,163,477.10

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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.