Home / 918,424,546.25-1,267,533,473.94-522,007,124.40

Finding the Fourth Proportional to 918,424,546.25, 1,267,533,473.94 and 522,007,124.40

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Solution

The fourth proportional to 918,424,546.25, 1,267,533,473.94 and 522,007,124.40 is: 720,430,988.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,424,546.25 : 1,267,533,473.94 = 522,007,124.40 : x
  2. Step 2: Convert to fraction form
    918,424,546.25/1,267,533,473.94 = 522,007,124.40/x
  3. Step 3: Cross multiply
    918,424,546.25x = 1,267,533,473.94 × 522,007,124.40
  4. Step 4: Simplify right side
    918,424,546.25x = 661,661,503,812,161,792
  5. Step 5: Solve for x
    x = 661,661,503,812,161,792/918,424,546.25
  6. Step 6: Final answer
    x = 720,430,988.61

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1.5x scale

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.