Home / 13,440,612.70-20,160,919.05-7,771,908.70

Finding the Fourth Proportional to 13,440,612.70, 20,160,919.05 and 7,771,908.70

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Solution

The fourth proportional to 13,440,612.70, 20,160,919.05 and 7,771,908.70 is: 11,657,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440,612.70 : 20,160,919.05 = 7,771,908.70 : x
  2. Step 2: Convert to fraction form
    13,440,612.70/20,160,919.05 = 7,771,908.70/x
  3. Step 3: Cross multiply
    13,440,612.70x = 20,160,919.05 × 7,771,908.70
  4. Step 4: Simplify right side
    13,440,612.70x = 156,688,822,164,690.75
  5. Step 5: Solve for x
    x = 156,688,822,164,690.75/13,440,612.70
  6. Step 6: Final answer
    x = 11,657,863.05

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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.