Home / 256,013,798.97-353,299,972.50-138,539,116.45

Finding the Fourth Proportional to 256,013,798.97, 353,299,972.50 and 138,539,116.45

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Solution

The fourth proportional to 256,013,798.97, 353,299,972.50 and 138,539,116.45 is: 191,184,483.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,013,798.97 : 353,299,972.50 = 138,539,116.45 : x
  2. Step 2: Convert to fraction form
    256,013,798.97/353,299,972.50 = 138,539,116.45/x
  3. Step 3: Cross multiply
    256,013,798.97x = 353,299,972.50 × 138,539,116.45
  4. Step 4: Simplify right side
    256,013,798.97x = 48,945,866,031,076,048
  5. Step 5: Solve for x
    x = 48,945,866,031,076,048/256,013,798.97
  6. Step 6: Final answer
    x = 191,184,483.91

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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.