Home / 728,133,809.20-1,092,232,595.40-210,616,563.40

Finding the Fourth Proportional to 728,133,809.20, 1,092,232,595.40 and 210,616,563.40

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Solution

The fourth proportional to 728,133,809.20, 1,092,232,595.40 and 210,616,563.40 is: 315,934,067.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,133,809.20 : 1,092,232,595.40 = 210,616,563.40 : x
  2. Step 2: Convert to fraction form
    728,133,809.20/1,092,232,595.40 = 210,616,563.40/x
  3. Step 3: Cross multiply
    728,133,809.20x = 1,092,232,595.40 × 210,616,563.40
  4. Step 4: Simplify right side
    728,133,809.20x = 230,042,275,676,610,688
  5. Step 5: Solve for x
    x = 230,042,275,676,610,688/728,133,809.20
  6. Step 6: Final answer
    x = 315,934,067.02

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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.