Home / 30,660,800.36-42,301,219.52-19,653,619.64

Finding the Fourth Proportional to 30,660,800.36, 42,301,219.52 and 19,653,619.64

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Solution

The fourth proportional to 30,660,800.36, 42,301,219.52 and 19,653,619.64 is: 27,115,146.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,660,800.36 : 42,301,219.52 = 19,653,619.64 : x
  2. Step 2: Convert to fraction form
    30,660,800.36/42,301,219.52 = 19,653,619.64/x
  3. Step 3: Cross multiply
    30,660,800.36x = 42,301,219.52 × 19,653,619.64
  4. Step 4: Simplify right side
    30,660,800.36x = 831,372,078,754,223.50
  5. Step 5: Solve for x
    x = 831,372,078,754,223.50/30,660,800.36
  6. Step 6: Final answer
    x = 27,115,146.02

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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.