Home / 7,680,486.80-11,520,730.20-6,817,869.20

Finding the Fourth Proportional to 7,680,486.80, 11,520,730.20 and 6,817,869.20

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Solution

The fourth proportional to 7,680,486.80, 11,520,730.20 and 6,817,869.20 is: 10,226,803.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680,486.80 : 11,520,730.20 = 6,817,869.20 : x
  2. Step 2: Convert to fraction form
    7,680,486.80/11,520,730.20 = 6,817,869.20/x
  3. Step 3: Cross multiply
    7,680,486.80x = 11,520,730.20 × 6,817,869.20
  4. Step 4: Simplify right side
    7,680,486.80x = 78,546,831,592,089.84
  5. Step 5: Solve for x
    x = 78,546,831,592,089.84/7,680,486.80
  6. Step 6: Final answer
    x = 10,226,803.80

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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.