Home / 28,450,026,153.06-39,261,005,420.67-15,589,979,688.12

Finding the Fourth Proportional to 28,450,026,153.06, 39,261,005,420.67 and 15,589,979,688.12

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Solution

The fourth proportional to 28,450,026,153.06, 39,261,005,420.67 and 15,589,979,688.12 is: 21,514,155,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450,026,153.06 : 39,261,005,420.67 = 15,589,979,688.12 : x
  2. Step 2: Convert to fraction form
    28,450,026,153.06/39,261,005,420.67 = 15,589,979,688.12/x
  3. Step 3: Cross multiply
    28,450,026,153.06x = 39,261,005,420.67 × 15,589,979,688.12
  4. Step 4: Simplify right side
    28,450,026,153.06x = 612,078,277,043,414,499,328
  5. Step 5: Solve for x
    x = 612,078,277,043,414,499,328/28,450,026,153.06
  6. Step 6: Final answer
    x = 21,514,155,162.83

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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.