Home / 38,423,378.34-53,024,680.53-21,019,349.88

Finding the Fourth Proportional to 38,423,378.34, 53,024,680.53 and 21,019,349.88

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Solution

The fourth proportional to 38,423,378.34, 53,024,680.53 and 21,019,349.88 is: 29,006,931.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,423,378.34 : 53,024,680.53 = 21,019,349.88 : x
  2. Step 2: Convert to fraction form
    38,423,378.34/53,024,680.53 = 21,019,349.88/x
  3. Step 3: Cross multiply
    38,423,378.34x = 53,024,680.53 × 21,019,349.88
  4. Step 4: Simplify right side
    38,423,378.34x = 1,114,544,312,335,293.75
  5. Step 5: Solve for x
    x = 1,114,544,312,335,293.75/38,423,378.34
  6. Step 6: Final answer
    x = 29,006,931.73

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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.