Home / 516,228,830.37-712,386,816.36-281,281,421.48

Finding the Fourth Proportional to 516,228,830.37, 712,386,816.36 and 281,281,421.48

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Solution

The fourth proportional to 516,228,830.37, 712,386,816.36 and 281,281,421.48 is: 388,163,474.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,228,830.37 : 712,386,816.36 = 281,281,421.48 : x
  2. Step 2: Convert to fraction form
    516,228,830.37/712,386,816.36 = 281,281,421.48/x
  3. Step 3: Cross multiply
    516,228,830.37x = 712,386,816.36 × 281,281,421.48
  4. Step 4: Simplify right side
    516,228,830.37x = 200,381,176,345,790,592
  5. Step 5: Solve for x
    x = 200,381,176,345,790,592/516,228,830.37
  6. Step 6: Final answer
    x = 388,163,474.33

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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.