Home / 320,455,488.70-480,677,980.20-102,102,864.58

Finding the Fourth Proportional to 320,455,488.70, 480,677,980.20 and 102,102,864.58

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Solution

The fourth proportional to 320,455,488.70, 480,677,980.20 and 102,102,864.58 is: 153,152,623.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,455,488.70 : 480,677,980.20 = 102,102,864.58 : x
  2. Step 2: Convert to fraction form
    320,455,488.70/480,677,980.20 = 102,102,864.58/x
  3. Step 3: Cross multiply
    320,455,488.70x = 480,677,980.20 × 102,102,864.58
  4. Step 4: Simplify right side
    320,455,488.70x = 49,078,598,718,948,520
  5. Step 5: Solve for x
    x = 49,078,598,718,948,520/320,455,488.70
  6. Step 6: Final answer
    x = 153,152,623.22

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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.