Home / 456,236,428.30-684,354,642.45-429,362,572.30

Finding the Fourth Proportional to 456,236,428.30, 684,354,642.45 and 429,362,572.30

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Solution

The fourth proportional to 456,236,428.30, 684,354,642.45 and 429,362,572.30 is: 644,043,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,236,428.30 : 684,354,642.45 = 429,362,572.30 : x
  2. Step 2: Convert to fraction form
    456,236,428.30/684,354,642.45 = 429,362,572.30/x
  3. Step 3: Cross multiply
    456,236,428.30x = 684,354,642.45 × 429,362,572.30
  4. Step 4: Simplify right side
    456,236,428.30x = 293,836,269,647,778,816
  5. Step 5: Solve for x
    x = 293,836,269,647,778,816/456,236,428.30
  6. Step 6: Final answer
    x = 644,043,858.45

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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.