Home / 128,234,200.50-192,351,300.75-56,430,616.50

Finding the Fourth Proportional to 128,234,200.50, 192,351,300.75 and 56,430,616.50

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Solution

The fourth proportional to 128,234,200.50, 192,351,300.75 and 56,430,616.50 is: 84,645,924.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,234,200.50 : 192,351,300.75 = 56,430,616.50 : x
  2. Step 2: Convert to fraction form
    128,234,200.50/192,351,300.75 = 56,430,616.50/x
  3. Step 3: Cross multiply
    128,234,200.50x = 192,351,300.75 × 56,430,616.50
  4. Step 4: Simplify right side
    128,234,200.50x = 10,854,502,485,899,412
  5. Step 5: Solve for x
    x = 10,854,502,485,899,412/128,234,200.50
  6. Step 6: Final answer
    x = 84,645,924.75

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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.