Home / 77,390,843.32-116,082,438.90-28,864,916.92

Finding the Fourth Proportional to 77,390,843.32, 116,082,438.90 and 28,864,916.92

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Solution

The fourth proportional to 77,390,843.32, 116,082,438.90 and 28,864,916.92 is: 43,295,948.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,390,843.32 : 116,082,438.90 = 28,864,916.92 : x
  2. Step 2: Convert to fraction form
    77,390,843.32/116,082,438.90 = 28,864,916.92/x
  3. Step 3: Cross multiply
    77,390,843.32x = 116,082,438.90 × 28,864,916.92
  4. Step 4: Simplify right side
    77,390,843.32x = 3,350,709,954,719,476.50
  5. Step 5: Solve for x
    x = 3,350,709,954,719,476.50/77,390,843.32
  6. Step 6: Final answer
    x = 43,295,948.34

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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.