Home / 256,593,519.79-354,101,688.71-139,119,077.23

Finding the Fourth Proportional to 256,593,519.79, 354,101,688.71 and 139,119,077.23

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Solution

The fourth proportional to 256,593,519.79, 354,101,688.71 and 139,119,077.23 is: 191,985,753.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,593,519.79 : 354,101,688.71 = 139,119,077.23 : x
  2. Step 2: Convert to fraction form
    256,593,519.79/354,101,688.71 = 139,119,077.23/x
  3. Step 3: Cross multiply
    256,593,519.79x = 354,101,688.71 × 139,119,077.23
  4. Step 4: Simplify right side
    256,593,519.79x = 49,262,300,178,919,904
  5. Step 5: Solve for x
    x = 49,262,300,178,919,904/256,593,519.79
  6. Step 6: Final answer
    x = 191,985,753.26

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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.