Home / 1,120,344,855.40-1,680,767,128.86-344,068,857.64

Finding the Fourth Proportional to 1,120,344,855.40, 1,680,767,128.86 and 344,068,857.64

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Solution

The fourth proportional to 1,120,344,855.40, 1,680,767,128.86 and 344,068,857.64 is: 516,180,016.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,344,855.40 : 1,680,767,128.86 = 344,068,857.64 : x
  2. Step 2: Convert to fraction form
    1,120,344,855.40/1,680,767,128.86 = 344,068,857.64/x
  3. Step 3: Cross multiply
    1,120,344,855.40x = 1,680,767,128.86 × 344,068,857.64
  4. Step 4: Simplify right side
    1,120,344,855.40x = 578,299,625,985,722,752
  5. Step 5: Solve for x
    x = 578,299,625,985,722,752/1,120,344,855.40
  6. Step 6: Final answer
    x = 516,180,016.54

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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.