Home / 18,689,803.20-28,032,080.40-5,911,599.60

Finding the Fourth Proportional to 18,689,803.20, 28,032,080.40 and 5,911,599.60

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Solution

The fourth proportional to 18,689,803.20, 28,032,080.40 and 5,911,599.60 is: 8,866,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,803.20 : 28,032,080.40 = 5,911,599.60 : x
  2. Step 2: Convert to fraction form
    18,689,803.20/28,032,080.40 = 5,911,599.60/x
  3. Step 3: Cross multiply
    18,689,803.20x = 28,032,080.40 × 5,911,599.60
  4. Step 4: Simplify right side
    18,689,803.20x = 165,714,435,279,807.81
  5. Step 5: Solve for x
    x = 165,714,435,279,807.81/18,689,803.20
  6. Step 6: Final answer
    x = 8,866,569.30

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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.