Home / 28,326,277.60-42,510,411.60-20,768,005.60

Finding the Fourth Proportional to 28,326,277.60, 42,510,411.60 and 20,768,005.60

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Solution

The fourth proportional to 28,326,277.60, 42,510,411.60 and 20,768,005.60 is: 31,167,401.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,326,277.60 : 42,510,411.60 = 20,768,005.60 : x
  2. Step 2: Convert to fraction form
    28,326,277.60/42,510,411.60 = 20,768,005.60/x
  3. Step 3: Cross multiply
    28,326,277.60x = 42,510,411.60 × 20,768,005.60
  4. Step 4: Simplify right side
    28,326,277.60x = 882,856,466,167,105
  5. Step 5: Solve for x
    x = 882,856,466,167,105/28,326,277.60
  6. Step 6: Final answer
    x = 31,167,401.47

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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.