Home / 643,707,002.70-965,560,504.05-159,032,810.70

Finding the Fourth Proportional to 643,707,002.70, 965,560,504.05 and 159,032,810.70

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Solution

The fourth proportional to 643,707,002.70, 965,560,504.05 and 159,032,810.70 is: 238,549,216.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,707,002.70 : 965,560,504.05 = 159,032,810.70 : x
  2. Step 2: Convert to fraction form
    643,707,002.70/965,560,504.05 = 159,032,810.70/x
  3. Step 3: Cross multiply
    643,707,002.70x = 965,560,504.05 × 159,032,810.70
  4. Step 4: Simplify right side
    643,707,002.70x = 153,555,800,859,980,224
  5. Step 5: Solve for x
    x = 153,555,800,859,980,224/643,707,002.70
  6. Step 6: Final answer
    x = 238,549,216.05

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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.