Home / 6,980,595.80-10,478,766.90-5,390,209.40

Finding the Fourth Proportional to 6,980,595.80, 10,478,766.90 and 5,390,209.40

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Solution

The fourth proportional to 6,980,595.80, 10,478,766.90 and 5,390,209.40 is: 8,091,393.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980,595.80 : 10,478,766.90 = 5,390,209.40 : x
  2. Step 2: Convert to fraction form
    6,980,595.80/10,478,766.90 = 5,390,209.40/x
  3. Step 3: Cross multiply
    6,980,595.80x = 10,478,766.90 × 5,390,209.40
  4. Step 4: Simplify right side
    6,980,595.80x = 56,482,747,844,788.87
  5. Step 5: Solve for x
    x = 56,482,747,844,788.87/6,980,595.80
  6. Step 6: Final answer
    x = 8,091,393.55

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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.