Home / 38,423,434.44-53,025,592.72-21,019,779.66

Finding the Fourth Proportional to 38,423,434.44, 53,025,592.72 and 21,019,779.66

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Solution

The fourth proportional to 38,423,434.44, 53,025,592.72 and 21,019,779.66 is: 29,007,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,423,434.44 : 53,025,592.72 = 21,019,779.66 : x
  2. Step 2: Convert to fraction form
    38,423,434.44/53,025,592.72 = 21,019,779.66/x
  3. Step 3: Cross multiply
    38,423,434.44x = 53,025,592.72 × 21,019,779.66
  4. Step 4: Simplify right side
    38,423,434.44x = 1,114,586,275,315,300
  5. Step 5: Solve for x
    x = 1,114,586,275,315,300/38,423,434.44
  6. Step 6: Final answer
    x = 29,007,981.50

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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.