Home / 256,521,265.32-353,989,858.80-139,044,073.26

Finding the Fourth Proportional to 256,521,265.32, 353,989,858.80 and 139,044,073.26

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Solution

The fourth proportional to 256,521,265.32, 353,989,858.80 and 139,044,073.26 is: 191,875,678.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,521,265.32 : 353,989,858.80 = 139,044,073.26 : x
  2. Step 2: Convert to fraction form
    256,521,265.32/353,989,858.80 = 139,044,073.26/x
  3. Step 3: Cross multiply
    256,521,265.32x = 353,989,858.80 × 139,044,073.26
  4. Step 4: Simplify right side
    256,521,265.32x = 49,220,191,860,284,256
  5. Step 5: Solve for x
    x = 49,220,191,860,284,256/256,521,265.32
  6. Step 6: Final answer
    x = 191,875,678.61

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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.