Home / 21,307,383,888.16-31,968,173,886.60-7,143,751,159.24

Finding the Fourth Proportional to 21,307,383,888.16, 31,968,173,886.60 and 7,143,751,159.24

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Solution

The fourth proportional to 21,307,383,888.16, 31,968,173,886.60 and 7,143,751,159.24 is: 10,718,006,511.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,307,383,888.16 : 31,968,173,886.60 = 7,143,751,159.24 : x
  2. Step 2: Convert to fraction form
    21,307,383,888.16/31,968,173,886.60 = 7,143,751,159.24/x
  3. Step 3: Cross multiply
    21,307,383,888.16x = 31,968,173,886.60 × 7,143,751,159.24
  4. Step 4: Simplify right side
    21,307,383,888.16x = 228,372,679,261,184,622,592
  5. Step 5: Solve for x
    x = 228,372,679,261,184,622,592/21,307,383,888.16
  6. Step 6: Final answer
    x = 10,718,006,511.73

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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.