Home / 142,484,198.52-196,628,572.80-77,294,102.52

Finding the Fourth Proportional to 142,484,198.52, 196,628,572.80 and 77,294,102.52

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Solution

The fourth proportional to 142,484,198.52, 196,628,572.80 and 77,294,102.52 is: 106,666,066.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,484,198.52 : 196,628,572.80 = 77,294,102.52 : x
  2. Step 2: Convert to fraction form
    142,484,198.52/196,628,572.80 = 77,294,102.52/x
  3. Step 3: Cross multiply
    142,484,198.52x = 196,628,572.80 × 77,294,102.52
  4. Step 4: Simplify right side
    142,484,198.52x = 15,198,229,064,364,484
  5. Step 5: Solve for x
    x = 15,198,229,064,364,484/142,484,198.52
  6. Step 6: Final answer
    x = 106,666,066.99

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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.