Home / 256,371,570.02-353,792,287.94-138,899,819.90

Finding the Fourth Proportional to 256,371,570.02, 353,792,287.94 and 138,899,819.90

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Solution

The fourth proportional to 256,371,570.02, 353,792,287.94 and 138,899,819.90 is: 191,681,492.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,371,570.02 : 353,792,287.94 = 138,899,819.90 : x
  2. Step 2: Convert to fraction form
    256,371,570.02/353,792,287.94 = 138,899,819.90/x
  3. Step 3: Cross multiply
    256,371,570.02x = 353,792,287.94 × 138,899,819.90
  4. Step 4: Simplify right side
    256,371,570.02x = 49,141,685,076,874,944
  5. Step 5: Solve for x
    x = 49,141,685,076,874,944/256,371,570.02
  6. Step 6: Final answer
    x = 191,681,492.11

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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.