Home / 885,346,351.40-1,221,336,673.79-527,862,007.74

Finding the Fourth Proportional to 885,346,351.40, 1,221,336,673.79 and 527,862,007.74

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Solution

The fourth proportional to 885,346,351.40, 1,221,336,673.79 and 527,862,007.74 is: 728,186,463.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,346,351.40 : 1,221,336,673.79 = 527,862,007.74 : x
  2. Step 2: Convert to fraction form
    885,346,351.40/1,221,336,673.79 = 527,862,007.74/x
  3. Step 3: Cross multiply
    885,346,351.40x = 1,221,336,673.79 × 527,862,007.74
  4. Step 4: Simplify right side
    885,346,351.40x = 644,697,228,758,179,584
  5. Step 5: Solve for x
    x = 644,697,228,758,179,584/885,346,351.40
  6. Step 6: Final answer
    x = 728,186,463.68

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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.