Home / 12,116,321.40-18,152,363.70-7,382,983.80

Finding the Fourth Proportional to 12,116,321.40, 18,152,363.70 and 7,382,983.80

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Solution

The fourth proportional to 12,116,321.40, 18,152,363.70 and 7,382,983.80 is: 11,060,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116,321.40 : 18,152,363.70 = 7,382,983.80 : x
  2. Step 2: Convert to fraction form
    12,116,321.40/18,152,363.70 = 7,382,983.80/x
  3. Step 3: Cross multiply
    12,116,321.40x = 18,152,363.70 × 7,382,983.80
  4. Step 4: Simplify right side
    12,116,321.40x = 134,018,607,128,808.05
  5. Step 5: Solve for x
    x = 134,018,607,128,808.05/12,116,321.40
  6. Step 6: Final answer
    x = 11,060,998.03

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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.