Home / 811,963,022.96-1,120,510,077.72-440,685,059.12

Finding the Fourth Proportional to 811,963,022.96, 1,120,510,077.72 and 440,685,059.12

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Solution

The fourth proportional to 811,963,022.96, 1,120,510,077.72 and 440,685,059.12 is: 608,145,981.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,963,022.96 : 1,120,510,077.72 = 440,685,059.12 : x
  2. Step 2: Convert to fraction form
    811,963,022.96/1,120,510,077.72 = 440,685,059.12/x
  3. Step 3: Cross multiply
    811,963,022.96x = 1,120,510,077.72 × 440,685,059.12
  4. Step 4: Simplify right side
    811,963,022.96x = 493,792,049,844,593,984
  5. Step 5: Solve for x
    x = 493,792,049,844,593,984/811,963,022.96
  6. Step 6: Final answer
    x = 608,145,981.88

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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.