Home / 525,120,072.15-787,680,108.23-253,022,280.15

Finding the Fourth Proportional to 525,120,072.15, 787,680,108.23 and 253,022,280.15

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Solution

The fourth proportional to 525,120,072.15, 787,680,108.23 and 253,022,280.15 is: 379,533,420.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,120,072.15 : 787,680,108.23 = 253,022,280.15 : x
  2. Step 2: Convert to fraction form
    525,120,072.15/787,680,108.23 = 253,022,280.15/x
  3. Step 3: Cross multiply
    525,120,072.15x = 787,680,108.23 × 253,022,280.15
  4. Step 4: Simplify right side
    525,120,072.15x = 199,300,617,011,888,288
  5. Step 5: Solve for x
    x = 199,300,617,011,888,288/525,120,072.15
  6. Step 6: Final answer
    x = 379,533,420.23

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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.