Home / 78,972,669.80-118,528,988.70-46,584,074.60

Finding the Fourth Proportional to 78,972,669.80, 118,528,988.70 and 46,584,074.60

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Solution

The fourth proportional to 78,972,669.80, 118,528,988.70 and 46,584,074.60 is: 69,917,393.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,972,669.80 : 118,528,988.70 = 46,584,074.60 : x
  2. Step 2: Convert to fraction form
    78,972,669.80/118,528,988.70 = 46,584,074.60/x
  3. Step 3: Cross multiply
    78,972,669.80x = 118,528,988.70 × 46,584,074.60
  4. Step 4: Simplify right side
    78,972,669.80x = 5,521,563,251,863,357
  5. Step 5: Solve for x
    x = 5,521,563,251,863,357/78,972,669.80
  6. Step 6: Final answer
    x = 69,917,393.77

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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.