Home / 21,955,153.06-30,297,659.34-12,165,511.69

Finding the Fourth Proportional to 21,955,153.06, 30,297,659.34 and 12,165,511.69

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Solution

The fourth proportional to 21,955,153.06, 30,297,659.34 and 12,165,511.69 is: 16,788,155.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955,153.06 : 30,297,659.34 = 12,165,511.69 : x
  2. Step 2: Convert to fraction form
    21,955,153.06/30,297,659.34 = 12,165,511.69/x
  3. Step 3: Cross multiply
    21,955,153.06x = 30,297,659.34 × 12,165,511.69
  4. Step 4: Simplify right side
    21,955,153.06x = 368,586,528,880,407.69
  5. Step 5: Solve for x
    x = 368,586,528,880,407.69/21,955,153.06
  6. Step 6: Final answer
    x = 16,788,155.74

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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.