Home / 78,868,708.80-118,303,063.20-46,536,100.80

Finding the Fourth Proportional to 78,868,708.80, 118,303,063.20 and 46,536,100.80

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Solution

The fourth proportional to 78,868,708.80, 118,303,063.20 and 46,536,100.80 is: 69,804,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,868,708.80 : 118,303,063.20 = 46,536,100.80 : x
  2. Step 2: Convert to fraction form
    78,868,708.80/118,303,063.20 = 46,536,100.80/x
  3. Step 3: Cross multiply
    78,868,708.80x = 118,303,063.20 × 46,536,100.80
  4. Step 4: Simplify right side
    78,868,708.80x = 5,505,363,274,023,970
  5. Step 5: Solve for x
    x = 5,505,363,274,023,970/78,868,708.80
  6. Step 6: Final answer
    x = 69,804,151.20

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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.