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Finding the Fourth Proportional to 79,212,811.80, 118,872,361.80 and 46,830,340.20

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Solution

The fourth proportional to 79,212,811.80, 118,872,361.80 and 46,830,340.20 is: 70,276,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,212,811.80 : 118,872,361.80 = 46,830,340.20 : x
  2. Step 2: Convert to fraction form
    79,212,811.80/118,872,361.80 = 46,830,340.20/x
  3. Step 3: Cross multiply
    79,212,811.80x = 118,872,361.80 × 46,830,340.20
  4. Step 4: Simplify right side
    79,212,811.80x = 5,566,833,143,471,485
  5. Step 5: Solve for x
    x = 5,566,833,143,471,485/79,212,811.80
  6. Step 6: Final answer
    x = 70,276,928.91

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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.