Home / 321,154,555.20-483,890,802-290,483,328.96

Finding the Fourth Proportional to 321,154,555.20, 483,890,802 and 290,483,328.96

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Solution

The fourth proportional to 321,154,555.20, 483,890,802 and 290,483,328.96 is: 437,677,774.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,154,555.20 : 483,890,802 = 290,483,328.96 : x
  2. Step 2: Convert to fraction form
    321,154,555.20/483,890,802 = 290,483,328.96/x
  3. Step 3: Cross multiply
    321,154,555.20x = 483,890,802 × 290,483,328.96
  4. Step 4: Simplify right side
    321,154,555.20x = 140,562,211,018,084,208
  5. Step 5: Solve for x
    x = 140,562,211,018,084,208/321,154,555.20
  6. Step 6: Final answer
    x = 437,677,774.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.