Home / 408,726,804.23-564,780,803.34-291,047,831.61

Finding the Fourth Proportional to 408,726,804.23, 564,780,803.34 and 291,047,831.61

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Solution

The fourth proportional to 408,726,804.23, 564,780,803.34 and 291,047,831.61 is: 402,171,392.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,726,804.23 : 564,780,803.34 = 291,047,831.61 : x
  2. Step 2: Convert to fraction form
    408,726,804.23/564,780,803.34 = 291,047,831.61/x
  3. Step 3: Cross multiply
    408,726,804.23x = 564,780,803.34 × 291,047,831.61
  4. Step 4: Simplify right side
    408,726,804.23x = 164,378,228,147,060,864
  5. Step 5: Solve for x
    x = 164,378,228,147,060,864/408,726,804.23
  6. Step 6: Final answer
    x = 402,171,392.84

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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.