Home / 38,423,427.18-53,024,747.76-21,019,398.72

Finding the Fourth Proportional to 38,423,427.18, 53,024,747.76 and 21,019,398.72

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Solution

The fourth proportional to 38,423,427.18, 53,024,747.76 and 21,019,398.72 is: 29,006,999.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,423,427.18 : 53,024,747.76 = 21,019,398.72 : x
  2. Step 2: Convert to fraction form
    38,423,427.18/53,024,747.76 = 21,019,398.72/x
  3. Step 3: Cross multiply
    38,423,427.18x = 53,024,747.76 × 21,019,398.72
  4. Step 4: Simplify right side
    38,423,427.18x = 1,114,548,315,194,866.75
  5. Step 5: Solve for x
    x = 1,114,548,315,194,866.75/38,423,427.18
  6. Step 6: Final answer
    x = 29,006,999.04

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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.