Home / 21,026,167.53-29,010,627.95-12,319,662.21

Finding the Fourth Proportional to 21,026,167.53, 29,010,627.95 and 12,319,662.21

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Solution

The fourth proportional to 21,026,167.53, 29,010,627.95 and 12,319,662.21 is: 16,997,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026,167.53 : 29,010,627.95 = 12,319,662.21 : x
  2. Step 2: Convert to fraction form
    21,026,167.53/29,010,627.95 = 12,319,662.21/x
  3. Step 3: Cross multiply
    21,026,167.53x = 29,010,627.95 × 12,319,662.21
  4. Step 4: Simplify right side
    21,026,167.53x = 357,401,136,782,386.50
  5. Step 5: Solve for x
    x = 357,401,136,782,386.50/21,026,167.53
  6. Step 6: Final answer
    x = 16,997,921.10

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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.