Home / 157,493,083.80-236,239,625.70-128,771,650.20

Finding the Fourth Proportional to 157,493,083.80, 236,239,625.70 and 128,771,650.20

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Solution

The fourth proportional to 157,493,083.80, 236,239,625.70 and 128,771,650.20 is: 193,157,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,493,083.80 : 236,239,625.70 = 128,771,650.20 : x
  2. Step 2: Convert to fraction form
    157,493,083.80/236,239,625.70 = 128,771,650.20/x
  3. Step 3: Cross multiply
    157,493,083.80x = 236,239,625.70 × 128,771,650.20
  4. Step 4: Simplify right side
    157,493,083.80x = 30,420,966,444,019,328
  5. Step 5: Solve for x
    x = 30,420,966,444,019,328/157,493,083.80
  6. Step 6: Final answer
    x = 193,157,475.30

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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.