Home / 128,797,399.08-193,155,110.46-42,519,741.48

Finding the Fourth Proportional to 128,797,399.08, 193,155,110.46 and 42,519,741.48

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Solution

The fourth proportional to 128,797,399.08, 193,155,110.46 and 42,519,741.48 is: 63,766,080.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,797,399.08 : 193,155,110.46 = 42,519,741.48 : x
  2. Step 2: Convert to fraction form
    128,797,399.08/193,155,110.46 = 42,519,741.48/x
  3. Step 3: Cross multiply
    128,797,399.08x = 193,155,110.46 × 42,519,741.48
  4. Step 4: Simplify right side
    128,797,399.08x = 8,212,905,362,300,044
  5. Step 5: Solve for x
    x = 8,212,905,362,300,044/128,797,399.08
  6. Step 6: Final answer
    x = 63,766,080.84

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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.