Home / 210,069,144.80-314,891,140.80-123,763,126.40

Finding the Fourth Proportional to 210,069,144.80, 314,891,140.80 and 123,763,126.40

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Solution

The fourth proportional to 210,069,144.80, 314,891,140.80 and 123,763,126.40 is: 185,519,449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,069,144.80 : 314,891,140.80 = 123,763,126.40 : x
  2. Step 2: Convert to fraction form
    210,069,144.80/314,891,140.80 = 123,763,126.40/x
  3. Step 3: Cross multiply
    210,069,144.80x = 314,891,140.80 × 123,763,126.40
  4. Step 4: Simplify right side
    210,069,144.80x = 38,971,912,061,070,600
  5. Step 5: Solve for x
    x = 38,971,912,061,070,600/210,069,144.80
  6. Step 6: Final answer
    x = 185,519,449.31

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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.