Home / 885,346,353.43-1,221,336,676.59-527,862,009.78

Finding the Fourth Proportional to 885,346,353.43, 1,221,336,676.59 and 527,862,009.78

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Solution

The fourth proportional to 885,346,353.43, 1,221,336,676.59 and 527,862,009.78 is: 728,186,466.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,346,353.43 : 1,221,336,676.59 = 527,862,009.78 : x
  2. Step 2: Convert to fraction form
    885,346,353.43/1,221,336,676.59 = 527,862,009.78/x
  3. Step 3: Cross multiply
    885,346,353.43x = 1,221,336,676.59 × 527,862,009.78
  4. Step 4: Simplify right side
    885,346,353.43x = 644,697,232,718,722,432
  5. Step 5: Solve for x
    x = 644,697,232,718,722,432/885,346,353.43
  6. Step 6: Final answer
    x = 728,186,466.48

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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.