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Finding the Fourth Proportional to 6,642,681.60, 9,964,022.40 and 4,249,228.80

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Solution

The fourth proportional to 6,642,681.60, 9,964,022.40 and 4,249,228.80 is: 6,373,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,681.60 : 9,964,022.40 = 4,249,228.80 : x
  2. Step 2: Convert to fraction form
    6,642,681.60/9,964,022.40 = 4,249,228.80/x
  3. Step 3: Cross multiply
    6,642,681.60x = 9,964,022.40 × 4,249,228.80
  4. Step 4: Simplify right side
    6,642,681.60x = 42,339,410,945,925.12
  5. Step 5: Solve for x
    x = 42,339,410,945,925.12/6,642,681.60
  6. Step 6: Final answer
    x = 6,373,843.20

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Similar ratio
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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.