Home / 15,615,222,611.67-21,548,402,821.06-8,478,473,079.15

Finding the Fourth Proportional to 15,615,222,611.67, 21,548,402,821.06 and 8,478,473,079.15

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Solution

The fourth proportional to 15,615,222,611.67, 21,548,402,821.06 and 8,478,473,079.15 is: 11,699,964,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615,222,611.67 : 21,548,402,821.06 = 8,478,473,079.15 : x
  2. Step 2: Convert to fraction form
    15,615,222,611.67/21,548,402,821.06 = 8,478,473,079.15/x
  3. Step 3: Cross multiply
    15,615,222,611.67x = 21,548,402,821.06 × 8,478,473,079.15
  4. Step 4: Simplify right side
    15,615,222,611.67x = 182,697,553,217,020,133,376
  5. Step 5: Solve for x
    x = 182,697,553,217,020,133,376/15,615,222,611.67
  6. Step 6: Final answer
    x = 11,699,964,692.18

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.