Home / 405,703,231.76-559,869,885.92-220,064,023.28

Finding the Fourth Proportional to 405,703,231.76, 559,869,885.92 and 220,064,023.28

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Solution

The fourth proportional to 405,703,231.76, 559,869,885.92 and 220,064,023.28 is: 303,688,040.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,703,231.76 : 559,869,885.92 = 220,064,023.28 : x
  2. Step 2: Convert to fraction form
    405,703,231.76/559,869,885.92 = 220,064,023.28/x
  3. Step 3: Cross multiply
    405,703,231.76x = 559,869,885.92 × 220,064,023.28
  4. Step 4: Simplify right side
    405,703,231.76x = 123,207,219,608,869,808
  5. Step 5: Solve for x
    x = 123,207,219,608,869,808/405,703,231.76
  6. Step 6: Final answer
    x = 303,688,040.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.