Home / 516,228,846.51-712,386,838.62-281,281,437.60

Finding the Fourth Proportional to 516,228,846.51, 712,386,838.62 and 281,281,437.60

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Solution

The fourth proportional to 516,228,846.51, 712,386,838.62 and 281,281,437.60 is: 388,163,496.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,228,846.51 : 712,386,838.62 = 281,281,437.60 : x
  2. Step 2: Convert to fraction form
    516,228,846.51/712,386,838.62 = 281,281,437.60/x
  3. Step 3: Cross multiply
    516,228,846.51x = 712,386,838.62 × 281,281,437.60
  4. Step 4: Simplify right side
    516,228,846.51x = 200,381,194,094,352,832
  5. Step 5: Solve for x
    x = 200,381,194,094,352,832/516,228,846.51
  6. Step 6: Final answer
    x = 388,163,496.58

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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.