Home / 9,378,026.16-12,938,818.68-5,247,628.80

Finding the Fourth Proportional to 9,378,026.16, 12,938,818.68 and 5,247,628.80

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Solution

The fourth proportional to 9,378,026.16, 12,938,818.68 and 5,247,628.80 is: 7,240,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,378,026.16 : 12,938,818.68 = 5,247,628.80 : x
  2. Step 2: Convert to fraction form
    9,378,026.16/12,938,818.68 = 5,247,628.80/x
  3. Step 3: Cross multiply
    9,378,026.16x = 12,938,818.68 × 5,247,628.80
  4. Step 4: Simplify right side
    9,378,026.16x = 67,898,117,543,145.98
  5. Step 5: Solve for x
    x = 67,898,117,543,145.98/9,378,026.16
  6. Step 6: Final answer
    x = 7,240,128.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.