Home / 261,630,728.46-360,936,957.33-155,724,760.01

Finding the Fourth Proportional to 261,630,728.46, 360,936,957.33 and 155,724,760.01

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Solution

The fourth proportional to 261,630,728.46, 360,936,957.33 and 155,724,760.01 is: 214,832,643.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,630,728.46 : 360,936,957.33 = 155,724,760.01 : x
  2. Step 2: Convert to fraction form
    261,630,728.46/360,936,957.33 = 155,724,760.01/x
  3. Step 3: Cross multiply
    261,630,728.46x = 360,936,957.33 × 155,724,760.01
  4. Step 4: Simplify right side
    261,630,728.46x = 56,206,821,058,953,856
  5. Step 5: Solve for x
    x = 56,206,821,058,953,856/261,630,728.46
  6. Step 6: Final answer
    x = 214,832,643.66

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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.