Home / 163,643,617.20-245,438,637.48-66,595,404.72

Finding the Fourth Proportional to 163,643,617.20, 245,438,637.48 and 66,595,404.72

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Solution

The fourth proportional to 163,643,617.20, 245,438,637.48 and 66,595,404.72 is: 99,882,205.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,643,617.20 : 245,438,637.48 = 66,595,404.72 : x
  2. Step 2: Convert to fraction form
    163,643,617.20/245,438,637.48 = 66,595,404.72/x
  3. Step 3: Cross multiply
    163,643,617.20x = 245,438,637.48 × 66,595,404.72
  4. Step 4: Simplify right side
    163,643,617.20x = 16,345,085,396,905,960
  5. Step 5: Solve for x
    x = 16,345,085,396,905,960/163,643,617.20
  6. Step 6: Final answer
    x = 99,882,205.47

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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.