Home / 142,684,394.58-196,905,472.29-77,494,298.58

Finding the Fourth Proportional to 142,684,394.58, 196,905,472.29 and 77,494,298.58

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Solution

The fourth proportional to 142,684,394.58, 196,905,472.29 and 77,494,298.58 is: 106,942,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,684,394.58 : 196,905,472.29 = 77,494,298.58 : x
  2. Step 2: Convert to fraction form
    142,684,394.58/196,905,472.29 = 77,494,298.58/x
  3. Step 3: Cross multiply
    142,684,394.58x = 196,905,472.29 × 77,494,298.58
  4. Step 4: Simplify right side
    142,684,394.58x = 15,259,051,461,677,176
  5. Step 5: Solve for x
    x = 15,259,051,461,677,176/142,684,394.58
  6. Step 6: Final answer
    x = 106,942,679.38

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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.