Home / 85,800,671.70-128,701,007.55-51,363,294.90

Finding the Fourth Proportional to 85,800,671.70, 128,701,007.55 and 51,363,294.90

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Solution

The fourth proportional to 85,800,671.70, 128,701,007.55 and 51,363,294.90 is: 77,044,942.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,800,671.70 : 128,701,007.55 = 51,363,294.90 : x
  2. Step 2: Convert to fraction form
    85,800,671.70/128,701,007.55 = 51,363,294.90/x
  3. Step 3: Cross multiply
    85,800,671.70x = 128,701,007.55 × 51,363,294.90
  4. Step 4: Simplify right side
    85,800,671.70x = 6,610,507,804,717,776
  5. Step 5: Solve for x
    x = 6,610,507,804,717,776/85,800,671.70
  6. Step 6: Final answer
    x = 77,044,942.35

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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.