Home / 78,282,143.36-117,376,697.64-29,763,548.72

Finding the Fourth Proportional to 78,282,143.36, 117,376,697.64 and 29,763,548.72

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Solution

The fourth proportional to 78,282,143.36, 117,376,697.64 and 29,763,548.72 is: 44,627,636.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,282,143.36 : 117,376,697.64 = 29,763,548.72 : x
  2. Step 2: Convert to fraction form
    78,282,143.36/117,376,697.64 = 29,763,548.72/x
  3. Step 3: Cross multiply
    78,282,143.36x = 117,376,697.64 × 29,763,548.72
  4. Step 4: Simplify right side
    78,282,143.36x = 3,493,547,058,800,849
  5. Step 5: Solve for x
    x = 3,493,547,058,800,849/78,282,143.36
  6. Step 6: Final answer
    x = 44,627,636.76

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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.