Home / 86,094,821.48-118,743,669.78-55,157,869.40

Finding the Fourth Proportional to 86,094,821.48, 118,743,669.78 and 55,157,869.40

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Solution

The fourth proportional to 86,094,821.48, 118,743,669.78 and 55,157,869.40 is: 76,074,817.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,094,821.48 : 118,743,669.78 = 55,157,869.40 : x
  2. Step 2: Convert to fraction form
    86,094,821.48/118,743,669.78 = 55,157,869.40/x
  3. Step 3: Cross multiply
    86,094,821.48x = 118,743,669.78 × 55,157,869.40
  4. Step 4: Simplify right side
    86,094,821.48x = 6,549,647,829,801,967
  5. Step 5: Solve for x
    x = 6,549,647,829,801,967/86,094,821.48
  6. Step 6: Final answer
    x = 76,074,817.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.