Home / 21,490,302.60-32,235,453.90-19,138,840.20

Finding the Fourth Proportional to 21,490,302.60, 32,235,453.90 and 19,138,840.20

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Solution

The fourth proportional to 21,490,302.60, 32,235,453.90 and 19,138,840.20 is: 28,708,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490,302.60 : 32,235,453.90 = 19,138,840.20 : x
  2. Step 2: Convert to fraction form
    21,490,302.60/32,235,453.90 = 19,138,840.20/x
  3. Step 3: Cross multiply
    21,490,302.60x = 32,235,453.90 × 19,138,840.20
  4. Step 4: Simplify right side
    21,490,302.60x = 616,949,200,966,566.75
  5. Step 5: Solve for x
    x = 616,949,200,966,566.75/21,490,302.60
  6. Step 6: Final answer
    x = 28,708,260.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.