Home / 12,812,156.34-17,680,775.04-7,010,938.78

Finding the Fourth Proportional to 12,812,156.34, 17,680,775.04 and 7,010,938.78

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Solution

The fourth proportional to 12,812,156.34, 17,680,775.04 and 7,010,938.78 is: 9,675,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812,156.34 : 17,680,775.04 = 7,010,938.78 : x
  2. Step 2: Convert to fraction form
    12,812,156.34/17,680,775.04 = 7,010,938.78/x
  3. Step 3: Cross multiply
    12,812,156.34x = 17,680,775.04 × 7,010,938.78
  4. Step 4: Simplify right side
    12,812,156.34x = 123,958,831,388,392.05
  5. Step 5: Solve for x
    x = 123,958,831,388,392.05/12,812,156.34
  6. Step 6: Final answer
    x = 9,675,095.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.