Home / 92,689,638.60-139,034,457.90-51,874,969.80

Finding the Fourth Proportional to 92,689,638.60, 139,034,457.90 and 51,874,969.80

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Solution

The fourth proportional to 92,689,638.60, 139,034,457.90 and 51,874,969.80 is: 77,812,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,689,638.60 : 139,034,457.90 = 51,874,969.80 : x
  2. Step 2: Convert to fraction form
    92,689,638.60/139,034,457.90 = 51,874,969.80/x
  3. Step 3: Cross multiply
    92,689,638.60x = 139,034,457.90 × 51,874,969.80
  4. Step 4: Simplify right side
    92,689,638.60x = 7,212,408,304,721,871
  5. Step 5: Solve for x
    x = 7,212,408,304,721,871/92,689,638.60
  6. Step 6: Final answer
    x = 77,812,454.70

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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.