Home / 805,680,033.80-1,208,520,050.70-422,677,819.40

Finding the Fourth Proportional to 805,680,033.80, 1,208,520,050.70 and 422,677,819.40

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Solution

The fourth proportional to 805,680,033.80, 1,208,520,050.70 and 422,677,819.40 is: 634,016,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,680,033.80 : 1,208,520,050.70 = 422,677,819.40 : x
  2. Step 2: Convert to fraction form
    805,680,033.80/1,208,520,050.70 = 422,677,819.40/x
  3. Step 3: Cross multiply
    805,680,033.80x = 1,208,520,050.70 × 422,677,819.40
  4. Step 4: Simplify right side
    805,680,033.80x = 510,814,619,731,053,440
  5. Step 5: Solve for x
    x = 510,814,619,731,053,440/805,680,033.80
  6. Step 6: Final answer
    x = 634,016,729.10

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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.