Home / 20,368,830.03-28,108,424.91-11,201,472.78

Finding the Fourth Proportional to 20,368,830.03, 28,108,424.91 and 11,201,472.78

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Solution

The fourth proportional to 20,368,830.03, 28,108,424.91 and 11,201,472.78 is: 15,457,724.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,830.03 : 28,108,424.91 = 11,201,472.78 : x
  2. Step 2: Convert to fraction form
    20,368,830.03/28,108,424.91 = 11,201,472.78/x
  3. Step 3: Cross multiply
    20,368,830.03x = 28,108,424.91 × 11,201,472.78
  4. Step 4: Simplify right side
    20,368,830.03x = 314,855,756,518,038.94
  5. Step 5: Solve for x
    x = 314,855,756,518,038.94/20,368,830.03
  6. Step 6: Final answer
    x = 15,457,724.18

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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.