Home / 21,783,030.20-32,674,545.30-18,759,721.40

Finding the Fourth Proportional to 21,783,030.20, 32,674,545.30 and 18,759,721.40

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Solution

The fourth proportional to 21,783,030.20, 32,674,545.30 and 18,759,721.40 is: 28,139,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783,030.20 : 32,674,545.30 = 18,759,721.40 : x
  2. Step 2: Convert to fraction form
    21,783,030.20/32,674,545.30 = 18,759,721.40/x
  3. Step 3: Cross multiply
    21,783,030.20x = 32,674,545.30 × 18,759,721.40
  4. Step 4: Simplify right side
    21,783,030.20x = 612,965,366,699,679.38
  5. Step 5: Solve for x
    x = 612,965,366,699,679.38/21,783,030.20
  6. Step 6: Final answer
    x = 28,139,582.10

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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.