Home / 14,257,938.80-21,386,908.20-8,211,321.20

Finding the Fourth Proportional to 14,257,938.80, 21,386,908.20 and 8,211,321.20

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Solution

The fourth proportional to 14,257,938.80, 21,386,908.20 and 8,211,321.20 is: 12,316,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257,938.80 : 21,386,908.20 = 8,211,321.20 : x
  2. Step 2: Convert to fraction form
    14,257,938.80/21,386,908.20 = 8,211,321.20/x
  3. Step 3: Cross multiply
    14,257,938.80x = 21,386,908.20 × 8,211,321.20
  4. Step 4: Simplify right side
    14,257,938.80x = 175,614,772,705,113.84
  5. Step 5: Solve for x
    x = 175,614,772,705,113.84/14,257,938.80
  6. Step 6: Final answer
    x = 12,316,981.80

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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.