Home / 749,059,512.40-1,123,310,563.80-257,634,845.20

Finding the Fourth Proportional to 749,059,512.40, 1,123,310,563.80 and 257,634,845.20

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Solution

The fourth proportional to 749,059,512.40, 1,123,310,563.80 and 257,634,845.20 is: 386,356,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,059,512.40 : 1,123,310,563.80 = 257,634,845.20 : x
  2. Step 2: Convert to fraction form
    749,059,512.40/1,123,310,563.80 = 257,634,845.20/x
  3. Step 3: Cross multiply
    749,059,512.40x = 1,123,310,563.80 × 257,634,845.20
  4. Step 4: Simplify right side
    749,059,512.40x = 289,403,943,216,137,728
  5. Step 5: Solve for x
    x = 289,403,943,216,137,728/749,059,512.40
  6. Step 6: Final answer
    x = 386,356,408.84

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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.