Home / 256,000,133.50-384,048,637.20-81,167,202.70

Finding the Fourth Proportional to 256,000,133.50, 384,048,637.20 and 81,167,202.70

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Solution

The fourth proportional to 256,000,133.50, 384,048,637.20 and 81,167,202.70 is: 121,766,161.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,000,133.50 : 384,048,637.20 = 81,167,202.70 : x
  2. Step 2: Convert to fraction form
    256,000,133.50/384,048,637.20 = 81,167,202.70/x
  3. Step 3: Cross multiply
    256,000,133.50x = 384,048,637.20 × 81,167,202.70
  4. Step 4: Simplify right side
    256,000,133.50x = 31,172,153,582,271,160
  5. Step 5: Solve for x
    x = 31,172,153,582,271,160/256,000,133.50
  6. Step 6: Final answer
    x = 121,766,161.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.