Home / 100,831,512.69-151,157,538.99-39,406,703.31

Finding the Fourth Proportional to 100,831,512.69, 151,157,538.99 and 39,406,703.31

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Solution

The fourth proportional to 100,831,512.69, 151,157,538.99 and 39,406,703.31 is: 59,074,986.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,831,512.69 : 151,157,538.99 = 39,406,703.31 : x
  2. Step 2: Convert to fraction form
    100,831,512.69/151,157,538.99 = 39,406,703.31/x
  3. Step 3: Cross multiply
    100,831,512.69x = 151,157,538.99 × 39,406,703.31
  4. Step 4: Simplify right side
    100,831,512.69x = 5,956,620,292,048,688
  5. Step 5: Solve for x
    x = 5,956,620,292,048,688/100,831,512.69
  6. Step 6: Final answer
    x = 59,074,986.91

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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.