Home / 21,656,898.72-29,886,511.68-11,999,106.72

Finding the Fourth Proportional to 21,656,898.72, 29,886,511.68 and 11,999,106.72

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Solution

The fourth proportional to 21,656,898.72, 29,886,511.68 and 11,999,106.72 is: 16,558,762.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,656,898.72 : 29,886,511.68 = 11,999,106.72 : x
  2. Step 2: Convert to fraction form
    21,656,898.72/29,886,511.68 = 11,999,106.72/x
  3. Step 3: Cross multiply
    21,656,898.72x = 29,886,511.68 × 11,999,106.72
  4. Step 4: Simplify right side
    21,656,898.72x = 358,611,443,136,846.50
  5. Step 5: Solve for x
    x = 358,611,443,136,846.50/21,656,898.72
  6. Step 6: Final answer
    x = 16,558,762.53

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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.