Home / 76,438,737-105,485,457.06-42,099,921

Finding the Fourth Proportional to 76,438,737, 105,485,457.06 and 42,099,921

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Solution

The fourth proportional to 76,438,737, 105,485,457.06 and 42,099,921 is: 58,097,890.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,438,737 : 105,485,457.06 = 42,099,921 : x
  2. Step 2: Convert to fraction form
    76,438,737/105,485,457.06 = 42,099,921/x
  3. Step 3: Cross multiply
    76,438,737x = 105,485,457.06 × 42,099,921
  4. Step 4: Simplify right side
    76,438,737x = 4,440,929,408,874,892.50
  5. Step 5: Solve for x
    x = 4,440,929,408,874,892.50/76,438,737
  6. Step 6: Final answer
    x = 58,097,890.98

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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.