Home / 20,864,028.96-28,791,931.20-11,570,099.52

Finding the Fourth Proportional to 20,864,028.96, 28,791,931.20 and 11,570,099.52

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Solution

The fourth proportional to 20,864,028.96, 28,791,931.20 and 11,570,099.52 is: 15,966,499.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,028.96 : 28,791,931.20 = 11,570,099.52 : x
  2. Step 2: Convert to fraction form
    20,864,028.96/28,791,931.20 = 11,570,099.52/x
  3. Step 3: Cross multiply
    20,864,028.96x = 28,791,931.20 × 11,570,099.52
  4. Step 4: Simplify right side
    20,864,028.96x = 333,125,509,356,993
  5. Step 5: Solve for x
    x = 333,125,509,356,993/20,864,028.96
  6. Step 6: Final answer
    x = 15,966,499.57

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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.