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Finding the Fourth Proportional to 559,970,485.65, 839,955,728.48 and 387,783,601.65

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Solution

The fourth proportional to 559,970,485.65, 839,955,728.48 and 387,783,601.65 is: 581,675,402.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,970,485.65 : 839,955,728.48 = 387,783,601.65 : x
  2. Step 2: Convert to fraction form
    559,970,485.65/839,955,728.48 = 387,783,601.65/x
  3. Step 3: Cross multiply
    559,970,485.65x = 839,955,728.48 × 387,783,601.65
  4. Step 4: Simplify right side
    559,970,485.65x = 325,721,057,614,584,960
  5. Step 5: Solve for x
    x = 325,721,057,614,584,960/559,970,485.65
  6. Step 6: Final answer
    x = 581,675,402.48

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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.