Home / 2,115,363,031.20-3,173,044,546.80-1,287,648,266.40

Finding the Fourth Proportional to 2,115,363,031.20, 3,173,044,546.80 and 1,287,648,266.40

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Solution

The fourth proportional to 2,115,363,031.20, 3,173,044,546.80 and 1,287,648,266.40 is: 1,931,472,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,363,031.20 : 3,173,044,546.80 = 1,287,648,266.40 : x
  2. Step 2: Convert to fraction form
    2,115,363,031.20/3,173,044,546.80 = 1,287,648,266.40/x
  3. Step 3: Cross multiply
    2,115,363,031.20x = 3,173,044,546.80 × 1,287,648,266.40
  4. Step 4: Simplify right side
    2,115,363,031.20x = 4,085,765,309,896,994,304
  5. Step 5: Solve for x
    x = 4,085,765,309,896,994,304/2,115,363,031.20
  6. Step 6: Final answer
    x = 1,931,472,399.60

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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.