Home / 972,691,477.44-1,459,028,063.52-420,384,413.76

Finding the Fourth Proportional to 972,691,477.44, 1,459,028,063.52 and 420,384,413.76

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Solution

The fourth proportional to 972,691,477.44, 1,459,028,063.52 and 420,384,413.76 is: 630,572,664.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,691,477.44 : 1,459,028,063.52 = 420,384,413.76 : x
  2. Step 2: Convert to fraction form
    972,691,477.44/1,459,028,063.52 = 420,384,413.76/x
  3. Step 3: Cross multiply
    972,691,477.44x = 1,459,028,063.52 × 420,384,413.76
  4. Step 4: Simplify right side
    972,691,477.44x = 613,352,657,142,243,200
  5. Step 5: Solve for x
    x = 613,352,657,142,243,200/972,691,477.44
  6. Step 6: Final answer
    x = 630,572,664.99

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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.