Home / 63,878,117.20-95,831,172.60-20,739,979.60

Finding the Fourth Proportional to 63,878,117.20, 95,831,172.60 and 20,739,979.60

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Solution

The fourth proportional to 63,878,117.20, 95,831,172.60 and 20,739,979.60 is: 31,114,513.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,878,117.20 : 95,831,172.60 = 20,739,979.60 : x
  2. Step 2: Convert to fraction form
    63,878,117.20/95,831,172.60 = 20,739,979.60/x
  3. Step 3: Cross multiply
    63,878,117.20x = 95,831,172.60 × 20,739,979.60
  4. Step 4: Simplify right side
    63,878,117.20x = 1,987,536,564,768,079
  5. Step 5: Solve for x
    x = 1,987,536,564,768,079/63,878,117.20
  6. Step 6: Final answer
    x = 31,114,513.89

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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.