Home / 38,714,861.85-53,428,032.30-21,312,826.30

Finding the Fourth Proportional to 38,714,861.85, 53,428,032.30 and 21,312,826.30

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Solution

The fourth proportional to 38,714,861.85, 53,428,032.30 and 21,312,826.30 is: 29,412,538.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,714,861.85 : 53,428,032.30 = 21,312,826.30 : x
  2. Step 2: Convert to fraction form
    38,714,861.85/53,428,032.30 = 21,312,826.30/x
  3. Step 3: Cross multiply
    38,714,861.85x = 53,428,032.30 × 21,312,826.30
  4. Step 4: Simplify right side
    38,714,861.85x = 1,138,702,371,960,689.50
  5. Step 5: Solve for x
    x = 1,138,702,371,960,689.50/38,714,861.85
  6. Step 6: Final answer
    x = 29,412,538.69

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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.