Home / 18,689,571.40-28,034,357.10-12,307,030.60

Finding the Fourth Proportional to 18,689,571.40, 28,034,357.10 and 12,307,030.60

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Solution

The fourth proportional to 18,689,571.40, 28,034,357.10 and 12,307,030.60 is: 18,460,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,571.40 : 28,034,357.10 = 12,307,030.60 : x
  2. Step 2: Convert to fraction form
    18,689,571.40/28,034,357.10 = 12,307,030.60/x
  3. Step 3: Cross multiply
    18,689,571.40x = 28,034,357.10 × 12,307,030.60
  4. Step 4: Simplify right side
    18,689,571.40x = 345,019,690,681,027.25
  5. Step 5: Solve for x
    x = 345,019,690,681,027.25/18,689,571.40
  6. Step 6: Final answer
    x = 18,460,545.90

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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.