Home / 21,311,686.20-32,001,743.70-19,739,897.40

Finding the Fourth Proportional to 21,311,686.20, 32,001,743.70 and 19,739,897.40

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Solution

The fourth proportional to 21,311,686.20, 32,001,743.70 and 19,739,897.40 is: 29,641,537.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,311,686.20 : 32,001,743.70 = 19,739,897.40 : x
  2. Step 2: Convert to fraction form
    21,311,686.20/32,001,743.70 = 19,739,897.40/x
  3. Step 3: Cross multiply
    21,311,686.20x = 32,001,743.70 × 19,739,897.40
  4. Step 4: Simplify right side
    21,311,686.20x = 631,711,137,259,096.38
  5. Step 5: Solve for x
    x = 631,711,137,259,096.38/21,311,686.20
  6. Step 6: Final answer
    x = 29,641,537.10

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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.