Home / 407,084,944.23-561,776,797.76-221,445,517.05

Finding the Fourth Proportional to 407,084,944.23, 561,776,797.76 and 221,445,517.05

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Solution

The fourth proportional to 407,084,944.23, 561,776,797.76 and 221,445,517.05 is: 305,594,582.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,084,944.23 : 561,776,797.76 = 221,445,517.05 : x
  2. Step 2: Convert to fraction form
    407,084,944.23/561,776,797.76 = 221,445,517.05/x
  3. Step 3: Cross multiply
    407,084,944.23x = 561,776,797.76 × 221,445,517.05
  4. Step 4: Simplify right side
    407,084,944.23x = 124,402,953,445,549,264
  5. Step 5: Solve for x
    x = 124,402,953,445,549,264/407,084,944.23
  6. Step 6: Final answer
    x = 305,594,582.18

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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.