Home / 135,159,563.64-186,523,870.32-76,431,015.84

Finding the Fourth Proportional to 135,159,563.64, 186,523,870.32 and 76,431,015.84

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Solution

The fourth proportional to 135,159,563.64, 186,523,870.32 and 76,431,015.84 is: 105,476,878.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,159,563.64 : 186,523,870.32 = 76,431,015.84 : x
  2. Step 2: Convert to fraction form
    135,159,563.64/186,523,870.32 = 76,431,015.84/x
  3. Step 3: Cross multiply
    135,159,563.64x = 186,523,870.32 × 76,431,015.84
  4. Step 4: Simplify right side
    135,159,563.64x = 14,256,208,886,966,026
  5. Step 5: Solve for x
    x = 14,256,208,886,966,026/135,159,563.64
  6. Step 6: Final answer
    x = 105,476,878.61

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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.