Home / 20,301,601.55-28,017,981.69-11,136,015.77

Finding the Fourth Proportional to 20,301,601.55, 28,017,981.69 and 11,136,015.77

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Solution

The fourth proportional to 20,301,601.55, 28,017,981.69 and 11,136,015.77 is: 15,368,673.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301,601.55 : 28,017,981.69 = 11,136,015.77 : x
  2. Step 2: Convert to fraction form
    20,301,601.55/28,017,981.69 = 11,136,015.77/x
  3. Step 3: Cross multiply
    20,301,601.55x = 28,017,981.69 × 11,136,015.77
  4. Step 4: Simplify right side
    20,301,601.55x = 312,008,685,943,411.25
  5. Step 5: Solve for x
    x = 312,008,685,943,411.25/20,301,601.55
  6. Step 6: Final answer
    x = 15,368,673.51

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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.