Home / 21,309,585.60-31,964,378.40-9,342,321.60

Finding the Fourth Proportional to 21,309,585.60, 31,964,378.40 and 9,342,321.60

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Solution

The fourth proportional to 21,309,585.60, 31,964,378.40 and 9,342,321.60 is: 14,013,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309,585.60 : 31,964,378.40 = 9,342,321.60 : x
  2. Step 2: Convert to fraction form
    21,309,585.60/31,964,378.40 = 9,342,321.60/x
  3. Step 3: Cross multiply
    21,309,585.60x = 31,964,378.40 × 9,342,321.60
  4. Step 4: Simplify right side
    21,309,585.60x = 298,621,502,756,893.44
  5. Step 5: Solve for x
    x = 298,621,502,756,893.44/21,309,585.60
  6. Step 6: Final answer
    x = 14,013,482.40

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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.