Home / 256,416,598.54-384,663,205.40-81,545,337.44

Finding the Fourth Proportional to 256,416,598.54, 384,663,205.40 and 81,545,337.44

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Solution

The fourth proportional to 256,416,598.54, 384,663,205.40 and 81,545,337.44 is: 122,330,188.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,416,598.54 : 384,663,205.40 = 81,545,337.44 : x
  2. Step 2: Convert to fraction form
    256,416,598.54/384,663,205.40 = 81,545,337.44/x
  3. Step 3: Cross multiply
    256,416,598.54x = 384,663,205.40 × 81,545,337.44
  4. Step 4: Simplify right side
    256,416,598.54x = 31,367,490,883,467,720
  5. Step 5: Solve for x
    x = 31,367,490,883,467,720/256,416,598.54
  6. Step 6: Final answer
    x = 122,330,188.69

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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.