Home / 7,876,589.40-11,814,884.10-6,547,986.90

Finding the Fourth Proportional to 7,876,589.40, 11,814,884.10 and 6,547,986.90

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Solution

The fourth proportional to 7,876,589.40, 11,814,884.10 and 6,547,986.90 is: 9,821,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876,589.40 : 11,814,884.10 = 6,547,986.90 : x
  2. Step 2: Convert to fraction form
    7,876,589.40/11,814,884.10 = 6,547,986.90/x
  3. Step 3: Cross multiply
    7,876,589.40x = 11,814,884.10 × 6,547,986.90
  4. Step 4: Simplify right side
    7,876,589.40x = 77,363,706,311,818.30
  5. Step 5: Solve for x
    x = 77,363,706,311,818.30/7,876,589.40
  6. Step 6: Final answer
    x = 9,821,980.35

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1.5x scale

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.