Home / 5,270,718.40-7,890,331.20-3,139,705.60

Finding the Fourth Proportional to 5,270,718.40, 7,890,331.20 and 3,139,705.60

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Solution

The fourth proportional to 5,270,718.40, 7,890,331.20 and 3,139,705.60 is: 4,700,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270,718.40 : 7,890,331.20 = 3,139,705.60 : x
  2. Step 2: Convert to fraction form
    5,270,718.40/7,890,331.20 = 3,139,705.60/x
  3. Step 3: Cross multiply
    5,270,718.40x = 7,890,331.20 × 3,139,705.60
  4. Step 4: Simplify right side
    5,270,718.40x = 24,773,317,054,494.72
  5. Step 5: Solve for x
    x = 24,773,317,054,494.72/5,270,718.40
  6. Step 6: Final answer
    x = 4,700,178.45

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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.