Home / 149,153,455,902.65-205,831,851,573.87-80,564,868,614.58

Finding the Fourth Proportional to 149,153,455,902.65, 205,831,851,573.87 and 80,564,868,614.58

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Solution

The fourth proportional to 149,153,455,902.65, 205,831,851,573.87 and 80,564,868,614.58 is: 111,179,563,211.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,153,455,902.65 : 205,831,851,573.87 = 80,564,868,614.58 : x
  2. Step 2: Convert to fraction form
    149,153,455,902.65/205,831,851,573.87 = 80,564,868,614.58/x
  3. Step 3: Cross multiply
    149,153,455,902.65x = 205,831,851,573.87 × 80,564,868,614.58
  4. Step 4: Simplify right side
    149,153,455,902.65x = 16,582,816,078,744,568,987,648
  5. Step 5: Solve for x
    x = 16,582,816,078,744,568,987,648/149,153,455,902.65
  6. Step 6: Final answer
    x = 111,179,563,211.52

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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.