Home / 149,153,455,905.15-205,831,851,577.32-80,564,868,617.09

Finding the Fourth Proportional to 149,153,455,905.15, 205,831,851,577.32 and 80,564,868,617.09

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Solution

The fourth proportional to 149,153,455,905.15, 205,831,851,577.32 and 80,564,868,617.09 is: 111,179,563,214.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,153,455,905.15 : 205,831,851,577.32 = 80,564,868,617.09 : x
  2. Step 2: Convert to fraction form
    149,153,455,905.15/205,831,851,577.32 = 80,564,868,617.09/x
  3. Step 3: Cross multiply
    149,153,455,905.15x = 205,831,851,577.32 × 80,564,868,617.09
  4. Step 4: Simplify right side
    149,153,455,905.15x = 16,582,816,079,539,154,714,624
  5. Step 5: Solve for x
    x = 16,582,816,079,539,154,714,624/149,153,455,905.15
  6. Step 6: Final answer
    x = 111,179,563,214.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.