Home / 140,238,368.70-210,357,553.05-82,758,176.70

Finding the Fourth Proportional to 140,238,368.70, 210,357,553.05 and 82,758,176.70

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Solution

The fourth proportional to 140,238,368.70, 210,357,553.05 and 82,758,176.70 is: 124,137,265.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,238,368.70 : 210,357,553.05 = 82,758,176.70 : x
  2. Step 2: Convert to fraction form
    140,238,368.70/210,357,553.05 = 82,758,176.70/x
  3. Step 3: Cross multiply
    140,238,368.70x = 210,357,553.05 × 82,758,176.70
  4. Step 4: Simplify right side
    140,238,368.70x = 17,408,807,545,491,526
  5. Step 5: Solve for x
    x = 17,408,807,545,491,526/140,238,368.70
  6. Step 6: Final answer
    x = 124,137,265.05

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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.