Home / 305,441,925.16-421,509,925.54-168,086,661.16

Finding the Fourth Proportional to 305,441,925.16, 421,509,925.54 and 168,086,661.16

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Solution

The fourth proportional to 305,441,925.16, 421,509,925.54 and 168,086,661.16 is: 231,959,630.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,441,925.16 : 421,509,925.54 = 168,086,661.16 : x
  2. Step 2: Convert to fraction form
    305,441,925.16/421,509,925.54 = 168,086,661.16/x
  3. Step 3: Cross multiply
    305,441,925.16x = 421,509,925.54 × 168,086,661.16
  4. Step 4: Simplify right side
    305,441,925.16x = 70,850,196,029,818,816
  5. Step 5: Solve for x
    x = 70,850,196,029,818,816/305,441,925.16
  6. Step 6: Final answer
    x = 231,959,630.27

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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.