Home / 216,153,141.03-324,225,928.72-85,009,036.42

Finding the Fourth Proportional to 216,153,141.03, 324,225,928.72 and 85,009,036.42

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Solution

The fourth proportional to 216,153,141.03, 324,225,928.72 and 85,009,036.42 is: 127,512,066.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,153,141.03 : 324,225,928.72 = 85,009,036.42 : x
  2. Step 2: Convert to fraction form
    216,153,141.03/324,225,928.72 = 85,009,036.42/x
  3. Step 3: Cross multiply
    216,153,141.03x = 324,225,928.72 × 85,009,036.42
  4. Step 4: Simplify right side
    216,153,141.03x = 27,562,133,780,820,628
  5. Step 5: Solve for x
    x = 27,562,133,780,820,628/216,153,141.03
  6. Step 6: Final answer
    x = 127,512,066.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.