Home / 463,670,028.40-695,505,042.60-428,634,482.80

Finding the Fourth Proportional to 463,670,028.40, 695,505,042.60 and 428,634,482.80

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Solution

The fourth proportional to 463,670,028.40, 695,505,042.60 and 428,634,482.80 is: 642,951,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,670,028.40 : 695,505,042.60 = 428,634,482.80 : x
  2. Step 2: Convert to fraction form
    463,670,028.40/695,505,042.60 = 428,634,482.80/x
  3. Step 3: Cross multiply
    463,670,028.40x = 695,505,042.60 × 428,634,482.80
  4. Step 4: Simplify right side
    463,670,028.40x = 298,117,444,219,643,008
  5. Step 5: Solve for x
    x = 298,117,444,219,643,008/463,670,028.40
  6. Step 6: Final answer
    x = 642,951,724.20

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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.