Home / 12,379,414,649.20-18,569,121,973.80-8,461,206,444.40

Finding the Fourth Proportional to 12,379,414,649.20, 18,569,121,973.80 and 8,461,206,444.40

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Solution

The fourth proportional to 12,379,414,649.20, 18,569,121,973.80 and 8,461,206,444.40 is: 12,691,809,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379,414,649.20 : 18,569,121,973.80 = 8,461,206,444.40 : x
  2. Step 2: Convert to fraction form
    12,379,414,649.20/18,569,121,973.80 = 8,461,206,444.40/x
  3. Step 3: Cross multiply
    12,379,414,649.20x = 18,569,121,973.80 × 8,461,206,444.40
  4. Step 4: Simplify right side
    12,379,414,649.20x = 157,117,174,511,566,192,640
  5. Step 5: Solve for x
    x = 157,117,174,511,566,192,640/12,379,414,649.20
  6. Step 6: Final answer
    x = 12,691,809,666.60

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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.