Home / 1,345,291,216.45-2,017,936,824.72-1,287,178,143.10

Finding the Fourth Proportional to 1,345,291,216.45, 2,017,936,824.72 and 1,287,178,143.10

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Solution

The fourth proportional to 1,345,291,216.45, 2,017,936,824.72 and 1,287,178,143.10 is: 1,930,767,214.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,291,216.45 : 2,017,936,824.72 = 1,287,178,143.10 : x
  2. Step 2: Convert to fraction form
    1,345,291,216.45/2,017,936,824.72 = 1,287,178,143.10/x
  3. Step 3: Cross multiply
    1,345,291,216.45x = 2,017,936,824.72 × 1,287,178,143.10
  4. Step 4: Simplify right side
    1,345,291,216.45x = 2,597,444,174,936,199,680
  5. Step 5: Solve for x
    x = 2,597,444,174,936,199,680/1,345,291,216.45
  6. Step 6: Final answer
    x = 1,930,767,214.69

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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.