Home / 78,977,118.95-118,235,165.88-46,086,899.77

Finding the Fourth Proportional to 78,977,118.95, 118,235,165.88 and 46,086,899.77

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Solution

The fourth proportional to 78,977,118.95, 118,235,165.88 and 46,086,899.77 is: 68,995,834.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,977,118.95 : 118,235,165.88 = 46,086,899.77 : x
  2. Step 2: Convert to fraction form
    78,977,118.95/118,235,165.88 = 46,086,899.77/x
  3. Step 3: Cross multiply
    78,977,118.95x = 118,235,165.88 × 46,086,899.77
  4. Step 4: Simplify right side
    78,977,118.95x = 5,449,092,238,856,431
  5. Step 5: Solve for x
    x = 5,449,092,238,856,431/78,977,118.95
  6. Step 6: Final answer
    x = 68,995,834.63

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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.