Home / 199,118,887.40-298,678,331.10-187,025,652.20

Finding the Fourth Proportional to 199,118,887.40, 298,678,331.10 and 187,025,652.20

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Solution

The fourth proportional to 199,118,887.40, 298,678,331.10 and 187,025,652.20 is: 280,538,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,118,887.40 : 298,678,331.10 = 187,025,652.20 : x
  2. Step 2: Convert to fraction form
    199,118,887.40/298,678,331.10 = 187,025,652.20/x
  3. Step 3: Cross multiply
    199,118,887.40x = 298,678,331.10 × 187,025,652.20
  4. Step 4: Simplify right side
    199,118,887.40x = 55,860,509,671,985,048
  5. Step 5: Solve for x
    x = 55,860,509,671,985,048/199,118,887.40
  6. Step 6: Final answer
    x = 280,538,478.30

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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.