Home / 313,391,640.80-470,087,461.20-311,376,101.60

Finding the Fourth Proportional to 313,391,640.80, 470,087,461.20 and 311,376,101.60

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Solution

The fourth proportional to 313,391,640.80, 470,087,461.20 and 311,376,101.60 is: 467,064,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,391,640.80 : 470,087,461.20 = 311,376,101.60 : x
  2. Step 2: Convert to fraction form
    313,391,640.80/470,087,461.20 = 311,376,101.60/x
  3. Step 3: Cross multiply
    313,391,640.80x = 470,087,461.20 × 311,376,101.60
  4. Step 4: Simplify right side
    313,391,640.80x = 146,374,001,079,497,280
  5. Step 5: Solve for x
    x = 146,374,001,079,497,280/313,391,640.80
  6. Step 6: Final answer
    x = 467,064,152.40

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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.