Home / 111,380,611.20-153,702,927.40-61,818,077.40

Finding the Fourth Proportional to 111,380,611.20, 153,702,927.40 and 61,818,077.40

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Solution

The fourth proportional to 111,380,611.20, 153,702,927.40 and 61,818,077.40 is: 85,307,661.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,380,611.20 : 153,702,927.40 = 61,818,077.40 : x
  2. Step 2: Convert to fraction form
    111,380,611.20/153,702,927.40 = 61,818,077.40/x
  3. Step 3: Cross multiply
    111,380,611.20x = 153,702,927.40 × 61,818,077.40
  4. Step 4: Simplify right side
    111,380,611.20x = 9,501,619,462,619,780
  5. Step 5: Solve for x
    x = 9,501,619,462,619,780/111,380,611.20
  6. Step 6: Final answer
    x = 85,307,661.36

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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.