Home / 90,705,047.45-136,007,095.22-53,831,921.27

Finding the Fourth Proportional to 90,705,047.45, 136,007,095.22 and 53,831,921.27

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Solution

The fourth proportional to 90,705,047.45, 136,007,095.22 and 53,831,921.27 is: 80,717,925.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,705,047.45 : 136,007,095.22 = 53,831,921.27 : x
  2. Step 2: Convert to fraction form
    90,705,047.45/136,007,095.22 = 53,831,921.27/x
  3. Step 3: Cross multiply
    90,705,047.45x = 136,007,095.22 × 53,831,921.27
  4. Step 4: Simplify right side
    90,705,047.45x = 7,321,523,242,444,736
  5. Step 5: Solve for x
    x = 7,321,523,242,444,736/90,705,047.45
  6. Step 6: Final answer
    x = 80,717,925.28

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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.