Home / 7,889,920.60-11,834,880.90-6,543,603.40

Finding the Fourth Proportional to 7,889,920.60, 11,834,880.90 and 6,543,603.40

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Solution

The fourth proportional to 7,889,920.60, 11,834,880.90 and 6,543,603.40 is: 9,815,405.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889,920.60 : 11,834,880.90 = 6,543,603.40 : x
  2. Step 2: Convert to fraction form
    7,889,920.60/11,834,880.90 = 6,543,603.40/x
  3. Step 3: Cross multiply
    7,889,920.60x = 11,834,880.90 × 6,543,603.40
  4. Step 4: Simplify right side
    7,889,920.60x = 77,442,766,895,835.06
  5. Step 5: Solve for x
    x = 77,442,766,895,835.06/7,889,920.60
  6. Step 6: Final answer
    x = 9,815,405.10

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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.