Home / 672,743,143.80-1,009,114,715.70-491,344,615.80

Finding the Fourth Proportional to 672,743,143.80, 1,009,114,715.70 and 491,344,615.80

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Solution

The fourth proportional to 672,743,143.80, 1,009,114,715.70 and 491,344,615.80 is: 737,016,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,743,143.80 : 1,009,114,715.70 = 491,344,615.80 : x
  2. Step 2: Convert to fraction form
    672,743,143.80/1,009,114,715.70 = 491,344,615.80/x
  3. Step 3: Cross multiply
    672,743,143.80x = 1,009,114,715.70 × 491,344,615.80
  4. Step 4: Simplify right side
    672,743,143.80x = 495,823,082,283,742,784
  5. Step 5: Solve for x
    x = 495,823,082,283,742,784/672,743,143.80
  6. Step 6: Final answer
    x = 737,016,923.70

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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.