Home / 2,129,980,939.20-3,193,459,754.40-819,376,574.40

Finding the Fourth Proportional to 2,129,980,939.20, 3,193,459,754.40 and 819,376,574.40

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Solution

The fourth proportional to 2,129,980,939.20, 3,193,459,754.40 and 819,376,574.40 is: 1,228,483,347.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,980,939.20 : 3,193,459,754.40 = 819,376,574.40 : x
  2. Step 2: Convert to fraction form
    2,129,980,939.20/3,193,459,754.40 = 819,376,574.40/x
  3. Step 3: Cross multiply
    2,129,980,939.20x = 3,193,459,754.40 × 819,376,574.40
  4. Step 4: Simplify right side
    2,129,980,939.20x = 2,616,646,114,044,537,344
  5. Step 5: Solve for x
    x = 2,616,646,114,044,537,344/2,129,980,939.20
  6. Step 6: Final answer
    x = 1,228,483,347.38

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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.