Home / 70,412,976.40-105,619,464.60-67,862,059.60

Finding the Fourth Proportional to 70,412,976.40, 105,619,464.60 and 67,862,059.60

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Solution

The fourth proportional to 70,412,976.40, 105,619,464.60 and 67,862,059.60 is: 101,793,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,412,976.40 : 105,619,464.60 = 67,862,059.60 : x
  2. Step 2: Convert to fraction form
    70,412,976.40/105,619,464.60 = 67,862,059.60/x
  3. Step 3: Cross multiply
    70,412,976.40x = 105,619,464.60 × 67,862,059.60
  4. Step 4: Simplify right side
    70,412,976.40x = 7,167,554,401,605,289
  5. Step 5: Solve for x
    x = 7,167,554,401,605,289/70,412,976.40
  6. Step 6: Final answer
    x = 101,793,089.40

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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.