Home / 155,675,068.45-214,820,805.20-86,054,968.84

Finding the Fourth Proportional to 155,675,068.45, 214,820,805.20 and 86,054,968.84

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Solution

The fourth proportional to 155,675,068.45, 214,820,805.20 and 86,054,968.84 is: 118,749,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,675,068.45 : 214,820,805.20 = 86,054,968.84 : x
  2. Step 2: Convert to fraction form
    155,675,068.45/214,820,805.20 = 86,054,968.84/x
  3. Step 3: Cross multiply
    155,675,068.45x = 214,820,805.20 × 86,054,968.84
  4. Step 4: Simplify right side
    155,675,068.45x = 18,486,397,697,669,708
  5. Step 5: Solve for x
    x = 18,486,397,697,669,708/155,675,068.45
  6. Step 6: Final answer
    x = 118,749,892.85

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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.