Home / 1,989,831,090.28-2,984,099,983.26-661,502,577.64

Finding the Fourth Proportional to 1,989,831,090.28, 2,984,099,983.26 and 661,502,577.64

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Solution

The fourth proportional to 1,989,831,090.28, 2,984,099,983.26 and 661,502,577.64 is: 992,038,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,831,090.28 : 2,984,099,983.26 = 661,502,577.64 : x
  2. Step 2: Convert to fraction form
    1,989,831,090.28/2,984,099,983.26 = 661,502,577.64/x
  3. Step 3: Cross multiply
    1,989,831,090.28x = 2,984,099,983.26 × 661,502,577.64
  4. Step 4: Simplify right side
    1,989,831,090.28x = 1,973,989,830,861,970,944
  5. Step 5: Solve for x
    x = 1,973,989,830,861,970,944/1,989,831,090.28
  6. Step 6: Final answer
    x = 992,038,892.40

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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.