Home / 1,489,692,418.40-2,234,538,627.60-520,218,063.20

Finding the Fourth Proportional to 1,489,692,418.40, 2,234,538,627.60 and 520,218,063.20

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Solution

The fourth proportional to 1,489,692,418.40, 2,234,538,627.60 and 520,218,063.20 is: 780,327,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,692,418.40 : 2,234,538,627.60 = 520,218,063.20 : x
  2. Step 2: Convert to fraction form
    1,489,692,418.40/2,234,538,627.60 = 520,218,063.20/x
  3. Step 3: Cross multiply
    1,489,692,418.40x = 2,234,538,627.60 × 520,218,063.20
  4. Step 4: Simplify right side
    1,489,692,418.40x = 1,162,447,356,995,657,984
  5. Step 5: Solve for x
    x = 1,162,447,356,995,657,984/1,489,692,418.40
  6. Step 6: Final answer
    x = 780,327,094.80

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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.