Home / 21,910,461-30,237,326.47-12,120,736.40

Finding the Fourth Proportional to 21,910,461, 30,237,326.47 and 12,120,736.40

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Solution

The fourth proportional to 21,910,461, 30,237,326.47 and 12,120,736.40 is: 16,727,108.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,910,461 : 30,237,326.47 = 12,120,736.40 : x
  2. Step 2: Convert to fraction form
    21,910,461/30,237,326.47 = 12,120,736.40/x
  3. Step 3: Cross multiply
    21,910,461x = 30,237,326.47 × 12,120,736.40
  4. Step 4: Simplify right side
    21,910,461x = 366,498,663,674,356.75
  5. Step 5: Solve for x
    x = 366,498,663,674,356.75/21,910,461
  6. Step 6: Final answer
    x = 16,727,108.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.