Home / 929,151,345.75-1,282,255,289.27-505,792,309.79

Finding the Fourth Proportional to 929,151,345.75, 1,282,255,289.27 and 505,792,309.79

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Solution

The fourth proportional to 929,151,345.75, 1,282,255,289.27 and 505,792,309.79 is: 698,007,776.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,151,345.75 : 1,282,255,289.27 = 505,792,309.79 : x
  2. Step 2: Convert to fraction form
    929,151,345.75/1,282,255,289.27 = 505,792,309.79/x
  3. Step 3: Cross multiply
    929,151,345.75x = 1,282,255,289.27 × 505,792,309.79
  4. Step 4: Simplify right side
    929,151,345.75x = 648,554,864,491,377,792
  5. Step 5: Solve for x
    x = 648,554,864,491,377,792/929,151,345.75
  6. Step 6: Final answer
    x = 698,007,776.08

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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.