Home / 27,779,015.30-38,335,042.85-15,220,123.36

Finding the Fourth Proportional to 27,779,015.30, 38,335,042.85 and 15,220,123.36

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Solution

The fourth proportional to 27,779,015.30, 38,335,042.85 and 15,220,123.36 is: 21,003,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,779,015.30 : 38,335,042.85 = 15,220,123.36 : x
  2. Step 2: Convert to fraction form
    27,779,015.30/38,335,042.85 = 15,220,123.36/x
  3. Step 3: Cross multiply
    27,779,015.30x = 38,335,042.85 × 15,220,123.36
  4. Step 4: Simplify right side
    27,779,015.30x = 583,464,081,015,947.75
  5. Step 5: Solve for x
    x = 583,464,081,015,947.75/27,779,015.30
  6. Step 6: Final answer
    x = 21,003,771.19

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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.