Home / 78,804,940.80-118,207,411.21-48,571,852.80

Finding the Fourth Proportional to 78,804,940.80, 118,207,411.21 and 48,571,852.80

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Solution

The fourth proportional to 78,804,940.80, 118,207,411.21 and 48,571,852.80 is: 72,857,779.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804,940.80 : 118,207,411.21 = 48,571,852.80 : x
  2. Step 2: Convert to fraction form
    78,804,940.80/118,207,411.21 = 48,571,852.80/x
  3. Step 3: Cross multiply
    78,804,940.80x = 118,207,411.21 × 48,571,852.80
  4. Step 4: Simplify right side
    78,804,940.80x = 5,741,552,977,161,189
  5. Step 5: Solve for x
    x = 5,741,552,977,161,189/78,804,940.80
  6. Step 6: Final answer
    x = 72,857,779.21

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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.