Home / 4,312,643.40-6,468,965.10-3,178,902.60

Finding the Fourth Proportional to 4,312,643.40, 6,468,965.10 and 3,178,902.60

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Solution

The fourth proportional to 4,312,643.40, 6,468,965.10 and 3,178,902.60 is: 4,768,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,312,643.40 : 6,468,965.10 = 3,178,902.60 : x
  2. Step 2: Convert to fraction form
    4,312,643.40/6,468,965.10 = 3,178,902.60/x
  3. Step 3: Cross multiply
    4,312,643.40x = 6,468,965.10 × 3,178,902.60
  4. Step 4: Simplify right side
    4,312,643.40x = 20,564,209,975,699.26
  5. Step 5: Solve for x
    x = 20,564,209,975,699.26/4,312,643.40
  6. Step 6: Final answer
    x = 4,768,353.90

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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.