Home / 640,413,752.68-883,771,734.66-347,058,320.68

Finding the Fourth Proportional to 640,413,752.68, 883,771,734.66 and 347,058,320.68

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Solution

The fourth proportional to 640,413,752.68, 883,771,734.66 and 347,058,320.68 is: 478,940,892.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,413,752.68 : 883,771,734.66 = 347,058,320.68 : x
  2. Step 2: Convert to fraction form
    640,413,752.68/883,771,734.66 = 347,058,320.68/x
  3. Step 3: Cross multiply
    640,413,752.68x = 883,771,734.66 × 347,058,320.68
  4. Step 4: Simplify right side
    640,413,752.68x = 306,720,334,095,550,144
  5. Step 5: Solve for x
    x = 306,720,334,095,550,144/640,413,752.68
  6. Step 6: Final answer
    x = 478,940,892.22

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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.