Home / 21,279,000.84-29,365,053.93-12,111,643.50

Finding the Fourth Proportional to 21,279,000.84, 29,365,053.93 and 12,111,643.50

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Solution

The fourth proportional to 21,279,000.84, 29,365,053.93 and 12,111,643.50 is: 16,714,086.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,279,000.84 : 29,365,053.93 = 12,111,643.50 : x
  2. Step 2: Convert to fraction form
    21,279,000.84/29,365,053.93 = 12,111,643.50/x
  3. Step 3: Cross multiply
    21,279,000.84x = 29,365,053.93 × 12,111,643.50
  4. Step 4: Simplify right side
    21,279,000.84x = 355,659,064,558,433.94
  5. Step 5: Solve for x
    x = 355,659,064,558,433.94/21,279,000.84
  6. Step 6: Final answer
    x = 16,714,086.68

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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.