Home / 7,890,494.40-11,834,866.80-6,468,069.60

Finding the Fourth Proportional to 7,890,494.40, 11,834,866.80 and 6,468,069.60

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Solution

The fourth proportional to 7,890,494.40, 11,834,866.80 and 6,468,069.60 is: 9,701,387.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890,494.40 : 11,834,866.80 = 6,468,069.60 : x
  2. Step 2: Convert to fraction form
    7,890,494.40/11,834,866.80 = 6,468,069.60/x
  3. Step 3: Cross multiply
    7,890,494.40x = 11,834,866.80 × 6,468,069.60
  4. Step 4: Simplify right side
    7,890,494.40x = 76,548,742,169,129.28
  5. Step 5: Solve for x
    x = 76,548,742,169,129.28/7,890,494.40
  6. Step 6: Final answer
    x = 9,701,387.30

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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.