Home / 970,010,405.40-1,455,015,608.10-478,958,921.40

Finding the Fourth Proportional to 970,010,405.40, 1,455,015,608.10 and 478,958,921.40

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Solution

The fourth proportional to 970,010,405.40, 1,455,015,608.10 and 478,958,921.40 is: 718,438,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,010,405.40 : 1,455,015,608.10 = 478,958,921.40 : x
  2. Step 2: Convert to fraction form
    970,010,405.40/1,455,015,608.10 = 478,958,921.40/x
  3. Step 3: Cross multiply
    970,010,405.40x = 1,455,015,608.10 × 478,958,921.40
  4. Step 4: Simplify right side
    970,010,405.40x = 696,892,706,275,741,056
  5. Step 5: Solve for x
    x = 696,892,706,275,741,056/970,010,405.40
  6. Step 6: Final answer
    x = 718,438,382.10

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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.