Home / 30,456,483.40-42,039,358.50-19,591,467.40

Finding the Fourth Proportional to 30,456,483.40, 42,039,358.50 and 19,591,467.40

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Solution

The fourth proportional to 30,456,483.40, 42,039,358.50 and 19,591,467.40 is: 27,042,279.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456,483.40 : 42,039,358.50 = 19,591,467.40 : x
  2. Step 2: Convert to fraction form
    30,456,483.40/42,039,358.50 = 19,591,467.40/x
  3. Step 3: Cross multiply
    30,456,483.40x = 42,039,358.50 × 19,591,467.40
  4. Step 4: Simplify right side
    30,456,483.40x = 823,612,721,569,662.88
  5. Step 5: Solve for x
    x = 823,612,721,569,662.88/30,456,483.40
  6. Step 6: Final answer
    x = 27,042,279.00

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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.