Home / 640,413,727.56-883,771,700.04-347,058,295.56

Finding the Fourth Proportional to 640,413,727.56, 883,771,700.04 and 347,058,295.56

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Solution

The fourth proportional to 640,413,727.56, 883,771,700.04 and 347,058,295.56 is: 478,940,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,413,727.56 : 883,771,700.04 = 347,058,295.56 : x
  2. Step 2: Convert to fraction form
    640,413,727.56/883,771,700.04 = 347,058,295.56/x
  3. Step 3: Cross multiply
    640,413,727.56x = 883,771,700.04 × 347,058,295.56
  4. Step 4: Simplify right side
    640,413,727.56x = 306,720,299,880,045,952
  5. Step 5: Solve for x
    x = 306,720,299,880,045,952/640,413,727.56
  6. Step 6: Final answer
    x = 478,940,857.57

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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.