Home / 2,989,666.40-4,484,499.60-2,758,719.20

Finding the Fourth Proportional to 2,989,666.40, 4,484,499.60 and 2,758,719.20

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Solution

The fourth proportional to 2,989,666.40, 4,484,499.60 and 2,758,719.20 is: 4,138,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,666.40 : 4,484,499.60 = 2,758,719.20 : x
  2. Step 2: Convert to fraction form
    2,989,666.40/4,484,499.60 = 2,758,719.20/x
  3. Step 3: Cross multiply
    2,989,666.40x = 4,484,499.60 × 2,758,719.20
  4. Step 4: Simplify right side
    2,989,666.40x = 12,371,475,148,912.32
  5. Step 5: Solve for x
    x = 12,371,475,148,912.32/2,989,666.40
  6. Step 6: Final answer
    x = 4,138,078.80

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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.