Home / 21,261,581,568.90-31,889,349,044.55-7,287,848,295.30

Finding the Fourth Proportional to 21,261,581,568.90, 31,889,349,044.55 and 7,287,848,295.30

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Solution

The fourth proportional to 21,261,581,568.90, 31,889,349,044.55 and 7,287,848,295.30 is: 10,930,736,141.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261,581,568.90 : 31,889,349,044.55 = 7,287,848,295.30 : x
  2. Step 2: Convert to fraction form
    21,261,581,568.90/31,889,349,044.55 = 7,287,848,295.30/x
  3. Step 3: Cross multiply
    21,261,581,568.90x = 31,889,349,044.55 × 7,287,848,295.30
  4. Step 4: Simplify right side
    21,261,581,568.90x = 232,404,738,072,550,408,192
  5. Step 5: Solve for x
    x = 232,404,738,072,550,408,192/21,261,581,568.90
  6. Step 6: Final answer
    x = 10,930,736,141.12

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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.