Home / 142,992,319.80-214,320,518.04-66,153,037.08

Finding the Fourth Proportional to 142,992,319.80, 214,320,518.04 and 66,153,037.08

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Solution

The fourth proportional to 142,992,319.80, 214,320,518.04 and 66,153,037.08 is: 99,151,850.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,992,319.80 : 214,320,518.04 = 66,153,037.08 : x
  2. Step 2: Convert to fraction form
    142,992,319.80/214,320,518.04 = 66,153,037.08/x
  3. Step 3: Cross multiply
    142,992,319.80x = 214,320,518.04 × 66,153,037.08
  4. Step 4: Simplify right side
    142,992,319.80x = 14,177,953,176,904,928
  5. Step 5: Solve for x
    x = 14,177,953,176,904,928/142,992,319.80
  6. Step 6: Final answer
    x = 99,151,850.93

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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.