Home / 142,029,652.56-212,856,137.11-72,939,665.35

Finding the Fourth Proportional to 142,029,652.56, 212,856,137.11 and 72,939,665.35

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Solution

The fourth proportional to 142,029,652.56, 212,856,137.11 and 72,939,665.35 is: 109,312,774.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,029,652.56 : 212,856,137.11 = 72,939,665.35 : x
  2. Step 2: Convert to fraction form
    142,029,652.56/212,856,137.11 = 72,939,665.35/x
  3. Step 3: Cross multiply
    142,029,652.56x = 212,856,137.11 × 72,939,665.35
  4. Step 4: Simplify right side
    142,029,652.56x = 15,525,655,408,497,116
  5. Step 5: Solve for x
    x = 15,525,655,408,497,116/142,029,652.56
  6. Step 6: Final answer
    x = 109,312,774.68

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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.