Home / 70,073,191.72-96,686,979.78-39,128,599.72

Finding the Fourth Proportional to 70,073,191.72, 96,686,979.78 and 39,128,599.72

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Solution

The fourth proportional to 70,073,191.72, 96,686,979.78 and 39,128,599.72 is: 53,989,636.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,073,191.72 : 96,686,979.78 = 39,128,599.72 : x
  2. Step 2: Convert to fraction form
    70,073,191.72/96,686,979.78 = 39,128,599.72/x
  3. Step 3: Cross multiply
    70,073,191.72x = 96,686,979.78 × 39,128,599.72
  4. Step 4: Simplify right side
    70,073,191.72x = 3,783,226,129,947,353.50
  5. Step 5: Solve for x
    x = 3,783,226,129,947,353.50/70,073,191.72
  6. Step 6: Final answer
    x = 53,989,636.22

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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.