Home / 12,457,690.40-18,680,314.80-5,718,490.40

Finding the Fourth Proportional to 12,457,690.40, 18,680,314.80 and 5,718,490.40

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Solution

The fourth proportional to 12,457,690.40, 18,680,314.80 and 5,718,490.40 is: 8,574,880.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,690.40 : 18,680,314.80 = 5,718,490.40 : x
  2. Step 2: Convert to fraction form
    12,457,690.40/18,680,314.80 = 5,718,490.40/x
  3. Step 3: Cross multiply
    12,457,690.40x = 18,680,314.80 × 5,718,490.40
  4. Step 4: Simplify right side
    12,457,690.40x = 106,823,200,852,777.94
  5. Step 5: Solve for x
    x = 106,823,200,852,777.94/12,457,690.40
  6. Step 6: Final answer
    x = 8,574,880.05

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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.