Home / 6,616,389.60-9,925,966.80-2,129,119.20

Finding the Fourth Proportional to 6,616,389.60, 9,925,966.80 and 2,129,119.20

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Solution

The fourth proportional to 6,616,389.60, 9,925,966.80 and 2,129,119.20 is: 3,194,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616,389.60 : 9,925,966.80 = 2,129,119.20 : x
  2. Step 2: Convert to fraction form
    6,616,389.60/9,925,966.80 = 2,129,119.20/x
  3. Step 3: Cross multiply
    6,616,389.60x = 9,925,966.80 × 2,129,119.20
  4. Step 4: Simplify right side
    6,616,389.60x = 21,133,566,492,442.56
  5. Step 5: Solve for x
    x = 21,133,566,492,442.56/6,616,389.60
  6. Step 6: Final answer
    x = 3,194,123.65

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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.