Home / 309,113,785.80-463,670,678.70-165,786,553.80

Finding the Fourth Proportional to 309,113,785.80, 463,670,678.70 and 165,786,553.80

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Solution

The fourth proportional to 309,113,785.80, 463,670,678.70 and 165,786,553.80 is: 248,679,830.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,113,785.80 : 463,670,678.70 = 165,786,553.80 : x
  2. Step 2: Convert to fraction form
    309,113,785.80/463,670,678.70 = 165,786,553.80/x
  3. Step 3: Cross multiply
    309,113,785.80x = 463,670,678.70 × 165,786,553.80
  4. Step 4: Simplify right side
    309,113,785.80x = 76,870,363,919,780,064
  5. Step 5: Solve for x
    x = 76,870,363,919,780,064/309,113,785.80
  6. Step 6: Final answer
    x = 248,679,830.70

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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.