Home / 21,730,221.40-29,985,950.22-12,563,455

Finding the Fourth Proportional to 21,730,221.40, 29,985,950.22 and 12,563,455

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Solution

The fourth proportional to 21,730,221.40, 29,985,950.22 and 12,563,455 is: 17,336,553.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730,221.40 : 29,985,950.22 = 12,563,455 : x
  2. Step 2: Convert to fraction form
    21,730,221.40/29,985,950.22 = 12,563,455/x
  3. Step 3: Cross multiply
    21,730,221.40x = 29,985,950.22 × 12,563,455
  4. Step 4: Simplify right side
    21,730,221.40x = 376,727,136,221,210.06
  5. Step 5: Solve for x
    x = 376,727,136,221,210.06/21,730,221.40
  6. Step 6: Final answer
    x = 17,336,553.06

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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.