Home / 970,059,959.40-1,455,089,939.10-279,989,725.80

Finding the Fourth Proportional to 970,059,959.40, 1,455,089,939.10 and 279,989,725.80

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Solution

The fourth proportional to 970,059,959.40, 1,455,089,939.10 and 279,989,725.80 is: 419,984,588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,059,959.40 : 1,455,089,939.10 = 279,989,725.80 : x
  2. Step 2: Convert to fraction form
    970,059,959.40/1,455,089,939.10 = 279,989,725.80/x
  3. Step 3: Cross multiply
    970,059,959.40x = 1,455,089,939.10 × 279,989,725.80
  4. Step 4: Simplify right side
    970,059,959.40x = 407,410,233,062,947,712
  5. Step 5: Solve for x
    x = 407,410,233,062,947,712/970,059,959.40
  6. Step 6: Final answer
    x = 419,984,588.70

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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.