Home / 142,582,338.36-196,758,535.95-80,701,348.32

Finding the Fourth Proportional to 142,582,338.36, 196,758,535.95 and 80,701,348.32

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Solution

The fourth proportional to 142,582,338.36, 196,758,535.95 and 80,701,348.32 is: 111,364,979.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,582,338.36 : 196,758,535.95 = 80,701,348.32 : x
  2. Step 2: Convert to fraction form
    142,582,338.36/196,758,535.95 = 80,701,348.32/x
  3. Step 3: Cross multiply
    142,582,338.36x = 196,758,535.95 × 80,701,348.32
  4. Step 4: Simplify right side
    142,582,338.36x = 15,878,679,144,634,190
  5. Step 5: Solve for x
    x = 15,878,679,144,634,190/142,582,338.36
  6. Step 6: Final answer
    x = 111,364,979.19

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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.