Home / 112,134,749.25-154,745,984.81-61,898,998.40

Finding the Fourth Proportional to 112,134,749.25, 154,745,984.81 and 61,898,998.40

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Solution

The fourth proportional to 112,134,749.25, 154,745,984.81 and 61,898,998.40 is: 85,420,634.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,134,749.25 : 154,745,984.81 = 61,898,998.40 : x
  2. Step 2: Convert to fraction form
    112,134,749.25/154,745,984.81 = 61,898,998.40/x
  3. Step 3: Cross multiply
    112,134,749.25x = 154,745,984.81 × 61,898,998.40
  4. Step 4: Simplify right side
    112,134,749.25x = 9,578,621,465,773,438
  5. Step 5: Solve for x
    x = 9,578,621,465,773,438/112,134,749.25
  6. Step 6: Final answer
    x = 85,420,634.81

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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.