Home / 405,012,081,807.20-558,865,302,095.74-222,061,040,254.80

Finding the Fourth Proportional to 405,012,081,807.20, 558,865,302,095.74 and 222,061,040,254.80

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Solution

The fourth proportional to 405,012,081,807.20, 558,865,302,095.74 and 222,061,040,254.80 is: 306,416,069,841.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,012,081,807.20 : 558,865,302,095.74 = 222,061,040,254.80 : x
  2. Step 2: Convert to fraction form
    405,012,081,807.20/558,865,302,095.74 = 222,061,040,254.80/x
  3. Step 3: Cross multiply
    405,012,081,807.20x = 558,865,302,095.74 × 222,061,040,254.80
  4. Step 4: Simplify right side
    405,012,081,807.20x = 124,102,210,345,693,073,113,088
  5. Step 5: Solve for x
    x = 124,102,210,345,693,073,113,088/405,012,081,807.20
  6. Step 6: Final answer
    x = 306,416,069,841.52

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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.