Home / 1,387,750,603.20-2,077,536,020.40-1,215,563,719.20

Finding the Fourth Proportional to 1,387,750,603.20, 2,077,536,020.40 and 1,215,563,719.20

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Solution

The fourth proportional to 1,387,750,603.20, 2,077,536,020.40 and 1,215,563,719.20 is: 1,819,763,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,750,603.20 : 2,077,536,020.40 = 1,215,563,719.20 : x
  2. Step 2: Convert to fraction form
    1,387,750,603.20/2,077,536,020.40 = 1,215,563,719.20/x
  3. Step 3: Cross multiply
    1,387,750,603.20x = 2,077,536,020.40 × 1,215,563,719.20
  4. Step 4: Simplify right side
    1,387,750,603.20x = 2,525,377,411,729,391,104
  5. Step 5: Solve for x
    x = 2,525,377,411,729,391,104/1,387,750,603.20
  6. Step 6: Final answer
    x = 1,819,763,151.90

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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.