Home / 256,401,153.64-353,955,590.81-171,773,990.35

Finding the Fourth Proportional to 256,401,153.64, 353,955,590.81 and 171,773,990.35

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Solution

The fourth proportional to 256,401,153.64, 353,955,590.81 and 171,773,990.35 is: 237,129,838.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,401,153.64 : 353,955,590.81 = 171,773,990.35 : x
  2. Step 2: Convert to fraction form
    256,401,153.64/353,955,590.81 = 171,773,990.35/x
  3. Step 3: Cross multiply
    256,401,153.64x = 353,955,590.81 × 171,773,990.35
  4. Step 4: Simplify right side
    256,401,153.64x = 60,800,364,239,025,880
  5. Step 5: Solve for x
    x = 60,800,364,239,025,880/256,401,153.64
  6. Step 6: Final answer
    x = 237,129,838.83

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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.