Home / 21,264,005.80-31,896,008.70-21,138,034.60

Finding the Fourth Proportional to 21,264,005.80, 31,896,008.70 and 21,138,034.60

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Solution

The fourth proportional to 21,264,005.80, 31,896,008.70 and 21,138,034.60 is: 31,707,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264,005.80 : 31,896,008.70 = 21,138,034.60 : x
  2. Step 2: Convert to fraction form
    21,264,005.80/31,896,008.70 = 21,138,034.60/x
  3. Step 3: Cross multiply
    21,264,005.80x = 31,896,008.70 × 21,138,034.60
  4. Step 4: Simplify right side
    21,264,005.80x = 674,218,935,502,501
  5. Step 5: Solve for x
    x = 674,218,935,502,501/21,264,005.80
  6. Step 6: Final answer
    x = 31,707,051.90

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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.