Home / 20,810,654,728.29-28,718,724,779.43-11,295,208,439.44

Finding the Fourth Proportional to 20,810,654,728.29, 28,718,724,779.43 and 11,295,208,439.44

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Solution

The fourth proportional to 20,810,654,728.29, 28,718,724,779.43 and 11,295,208,439.44 is: 15,587,399,182.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810,654,728.29 : 28,718,724,779.43 = 11,295,208,439.44 : x
  2. Step 2: Convert to fraction form
    20,810,654,728.29/28,718,724,779.43 = 11,295,208,439.44/x
  3. Step 3: Cross multiply
    20,810,654,728.29x = 28,718,724,779.43 × 11,295,208,439.44
  4. Step 4: Simplify right side
    20,810,654,728.29x = 324,383,982,498,572,402,688
  5. Step 5: Solve for x
    x = 324,383,982,498,572,402,688/20,810,654,728.29
  6. Step 6: Final answer
    x = 15,587,399,182.48

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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.