Home / 21,042,192.04-31,572,381-11,315,436.36

Finding the Fourth Proportional to 21,042,192.04, 31,572,381 and 11,315,436.36

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Solution

The fourth proportional to 21,042,192.04, 31,572,381 and 11,315,436.36 is: 16,978,044.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042,192.04 : 31,572,381 = 11,315,436.36 : x
  2. Step 2: Convert to fraction form
    21,042,192.04/31,572,381 = 11,315,436.36/x
  3. Step 3: Cross multiply
    21,042,192.04x = 31,572,381 × 11,315,436.36
  4. Step 4: Simplify right side
    21,042,192.04x = 357,255,267,939,173.12
  5. Step 5: Solve for x
    x = 357,255,267,939,173.12/21,042,192.04
  6. Step 6: Final answer
    x = 16,978,044.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.