Home / 21,307,383,882.65-31,968,173,878.35-7,143,751,153.73

Finding the Fourth Proportional to 21,307,383,882.65, 31,968,173,878.35 and 7,143,751,153.73

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Solution

The fourth proportional to 21,307,383,882.65, 31,968,173,878.35 and 7,143,751,153.73 is: 10,718,006,503.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,307,383,882.65 : 31,968,173,878.35 = 7,143,751,153.73 : x
  2. Step 2: Convert to fraction form
    21,307,383,882.65/31,968,173,878.35 = 7,143,751,153.73/x
  3. Step 3: Cross multiply
    21,307,383,882.65x = 31,968,173,878.35 × 7,143,751,153.73
  4. Step 4: Simplify right side
    21,307,383,882.65x = 228,372,679,026,148,278,272
  5. Step 5: Solve for x
    x = 228,372,679,026,148,278,272/21,307,383,882.65
  6. Step 6: Final answer
    x = 10,718,006,503.47

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Double scale
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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.