Home / 12,081,657.90-18,122,486.85-6,706,886.70

Finding the Fourth Proportional to 12,081,657.90, 18,122,486.85 and 6,706,886.70

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Solution

The fourth proportional to 12,081,657.90, 18,122,486.85 and 6,706,886.70 is: 10,060,330.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081,657.90 : 18,122,486.85 = 6,706,886.70 : x
  2. Step 2: Convert to fraction form
    12,081,657.90/18,122,486.85 = 6,706,886.70/x
  3. Step 3: Cross multiply
    12,081,657.90x = 18,122,486.85 × 6,706,886.70
  4. Step 4: Simplify right side
    12,081,657.90x = 121,545,466,025,189.91
  5. Step 5: Solve for x
    x = 121,545,466,025,189.91/12,081,657.90
  6. Step 6: Final answer
    x = 10,060,330.05

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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.