Home / 21,636,778.93-29,859,559.34-12,345,861.65

Finding the Fourth Proportional to 21,636,778.93, 29,859,559.34 and 12,345,861.65

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Solution

The fourth proportional to 21,636,778.93, 29,859,559.34 and 12,345,861.65 is: 17,037,748.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,636,778.93 : 29,859,559.34 = 12,345,861.65 : x
  2. Step 2: Convert to fraction form
    21,636,778.93/29,859,559.34 = 12,345,861.65/x
  3. Step 3: Cross multiply
    21,636,778.93x = 29,859,559.34 × 12,345,861.65
  4. Step 4: Simplify right side
    21,636,778.93x = 368,641,988,330,578.19
  5. Step 5: Solve for x
    x = 368,641,988,330,578.19/21,636,778.93
  6. Step 6: Final answer
    x = 17,037,748.07

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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.