Home / 142,768,743.06-197,020,382.46-80,900,875.02

Finding the Fourth Proportional to 142,768,743.06, 197,020,382.46 and 80,900,875.02

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Solution

The fourth proportional to 142,768,743.06, 197,020,382.46 and 80,900,875.02 is: 111,642,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,768,743.06 : 197,020,382.46 = 80,900,875.02 : x
  2. Step 2: Convert to fraction form
    142,768,743.06/197,020,382.46 = 80,900,875.02/x
  3. Step 3: Cross multiply
    142,768,743.06x = 197,020,382.46 × 80,900,875.02
  4. Step 4: Simplify right side
    142,768,743.06x = 15,939,121,337,789,060
  5. Step 5: Solve for x
    x = 15,939,121,337,789,060/142,768,743.06
  6. Step 6: Final answer
    x = 111,642,933.85

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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.