Home / 8,460,864,759.80-12,691,297,139.70-8,315,745,937.40

Finding the Fourth Proportional to 8,460,864,759.80, 12,691,297,139.70 and 8,315,745,937.40

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Solution

The fourth proportional to 8,460,864,759.80, 12,691,297,139.70 and 8,315,745,937.40 is: 12,473,618,906.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460,864,759.80 : 12,691,297,139.70 = 8,315,745,937.40 : x
  2. Step 2: Convert to fraction form
    8,460,864,759.80/12,691,297,139.70 = 8,315,745,937.40/x
  3. Step 3: Cross multiply
    8,460,864,759.80x = 12,691,297,139.70 × 8,315,745,937.40
  4. Step 4: Simplify right side
    8,460,864,759.80x = 105,537,602,629,796,511,744
  5. Step 5: Solve for x
    x = 105,537,602,629,796,511,744/8,460,864,759.80
  6. Step 6: Final answer
    x = 12,473,618,906.10

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Double scale
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Similar ratio
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1.5x scale

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.