Home / 11,889,620.20-17,834,430.30-7,779,809.80

Finding the Fourth Proportional to 11,889,620.20, 17,834,430.30 and 7,779,809.80

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Solution

The fourth proportional to 11,889,620.20, 17,834,430.30 and 7,779,809.80 is: 11,669,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889,620.20 : 17,834,430.30 = 7,779,809.80 : x
  2. Step 2: Convert to fraction form
    11,889,620.20/17,834,430.30 = 7,779,809.80/x
  3. Step 3: Cross multiply
    11,889,620.20x = 17,834,430.30 × 7,779,809.80
  4. Step 4: Simplify right side
    11,889,620.20x = 138,748,475,625,356.94
  5. Step 5: Solve for x
    x = 138,748,475,625,356.94/11,889,620.20
  6. Step 6: Final answer
    x = 11,669,714.70

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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.