Home / 970,059,948.90-1,455,089,923.35-279,989,715.30

Finding the Fourth Proportional to 970,059,948.90, 1,455,089,923.35 and 279,989,715.30

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Solution

The fourth proportional to 970,059,948.90, 1,455,089,923.35 and 279,989,715.30 is: 419,984,572.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,059,948.90 : 1,455,089,923.35 = 279,989,715.30 : x
  2. Step 2: Convert to fraction form
    970,059,948.90/1,455,089,923.35 = 279,989,715.30/x
  3. Step 3: Cross multiply
    970,059,948.90x = 1,455,089,923.35 × 279,989,715.30
  4. Step 4: Simplify right side
    970,059,948.90x = 407,410,213,374,665,344
  5. Step 5: Solve for x
    x = 407,410,213,374,665,344/970,059,948.90
  6. Step 6: Final answer
    x = 419,984,572.95

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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.