Home / 155,441,975-214,510,962.56-84,878,075.20

Finding the Fourth Proportional to 155,441,975, 214,510,962.56 and 84,878,075.20

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Solution

The fourth proportional to 155,441,975, 214,510,962.56 and 84,878,075.20 is: 117,132,310.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,441,975 : 214,510,962.56 = 84,878,075.20 : x
  2. Step 2: Convert to fraction form
    155,441,975/214,510,962.56 = 84,878,075.20/x
  3. Step 3: Cross multiply
    155,441,975x = 214,510,962.56 × 84,878,075.20
  4. Step 4: Simplify right side
    155,441,975x = 18,207,277,611,392,064
  5. Step 5: Solve for x
    x = 18,207,277,611,392,064/155,441,975
  6. Step 6: Final answer
    x = 117,132,310.06

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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.