Home / 21,387,657.60-32,097,232.80-8,617,327.20

Finding the Fourth Proportional to 21,387,657.60, 32,097,232.80 and 8,617,327.20

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Solution

The fourth proportional to 21,387,657.60, 32,097,232.80 and 8,617,327.20 is: 12,932,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,657.60 : 32,097,232.80 = 8,617,327.20 : x
  2. Step 2: Convert to fraction form
    21,387,657.60/32,097,232.80 = 8,617,327.20/x
  3. Step 3: Cross multiply
    21,387,657.60x = 32,097,232.80 × 8,617,327.20
  4. Step 4: Simplify right side
    21,387,657.60x = 276,592,357,252,172.16
  5. Step 5: Solve for x
    x = 276,592,357,252,172.16/21,387,657.60
  6. Step 6: Final answer
    x = 12,932,335.20

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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.