Home / 21,312,467.89-29,411,150.37-11,893,160.12

Finding the Fourth Proportional to 21,312,467.89, 29,411,150.37 and 11,893,160.12

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Solution

The fourth proportional to 21,312,467.89, 29,411,150.37 and 11,893,160.12 is: 16,412,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,467.89 : 29,411,150.37 = 11,893,160.12 : x
  2. Step 2: Convert to fraction form
    21,312,467.89/29,411,150.37 = 11,893,160.12/x
  3. Step 3: Cross multiply
    21,312,467.89x = 29,411,150.37 × 11,893,160.12
  4. Step 4: Simplify right side
    21,312,467.89x = 349,791,520,663,807.25
  5. Step 5: Solve for x
    x = 349,791,520,663,807.25/21,312,467.89
  6. Step 6: Final answer
    x = 16,412,530.10

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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.