Home / 7,028,181.95-10,543,126.01-1,979,492.45

Finding the Fourth Proportional to 7,028,181.95, 10,543,126.01 and 1,979,492.45

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Solution

The fourth proportional to 7,028,181.95, 10,543,126.01 and 1,979,492.45 is: 2,969,478.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028,181.95 : 10,543,126.01 = 1,979,492.45 : x
  2. Step 2: Convert to fraction form
    7,028,181.95/10,543,126.01 = 1,979,492.45/x
  3. Step 3: Cross multiply
    7,028,181.95x = 10,543,126.01 × 1,979,492.45
  4. Step 4: Simplify right side
    7,028,181.95x = 20,870,038,376,455.97
  5. Step 5: Solve for x
    x = 20,870,038,376,455.97/7,028,181.95
  6. Step 6: Final answer
    x = 2,969,478.95

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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.