Home / 149,153,455,903.15-205,831,851,574.56-80,564,868,615.09

Finding the Fourth Proportional to 149,153,455,903.15, 205,831,851,574.56 and 80,564,868,615.09

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Solution

The fourth proportional to 149,153,455,903.15, 205,831,851,574.56 and 80,564,868,615.09 is: 111,179,563,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,153,455,903.15 : 205,831,851,574.56 = 80,564,868,615.09 : x
  2. Step 2: Convert to fraction form
    149,153,455,903.15/205,831,851,574.56 = 80,564,868,615.09/x
  3. Step 3: Cross multiply
    149,153,455,903.15x = 205,831,851,574.56 × 80,564,868,615.09
  4. Step 4: Simplify right side
    149,153,455,903.15x = 16,582,816,078,905,131,139,072
  5. Step 5: Solve for x
    x = 16,582,816,078,905,131,139,072/149,153,455,903.15
  6. Step 6: Final answer
    x = 111,179,563,212.22

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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.