Home / 85,800,630.70-128,700,946.05-51,363,253.90

Finding the Fourth Proportional to 85,800,630.70, 128,700,946.05 and 51,363,253.90

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Solution

The fourth proportional to 85,800,630.70, 128,700,946.05 and 51,363,253.90 is: 77,044,880.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,800,630.70 : 128,700,946.05 = 51,363,253.90 : x
  2. Step 2: Convert to fraction form
    85,800,630.70/128,700,946.05 = 51,363,253.90/x
  3. Step 3: Cross multiply
    85,800,630.70x = 128,700,946.05 × 51,363,253.90
  4. Step 4: Simplify right side
    85,800,630.70x = 6,610,499,369,136,352
  5. Step 5: Solve for x
    x = 6,610,499,369,136,352/85,800,630.70
  6. Step 6: Final answer
    x = 77,044,880.85

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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.