Home / 885,064,976.73-1,221,357,650.81-488,579,450.49

Finding the Fourth Proportional to 885,064,976.73, 1,221,357,650.81 and 488,579,450.49

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Solution

The fourth proportional to 885,064,976.73, 1,221,357,650.81 and 488,579,450.49 is: 674,221,967.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,064,976.73 : 1,221,357,650.81 = 488,579,450.49 : x
  2. Step 2: Convert to fraction form
    885,064,976.73/1,221,357,650.81 = 488,579,450.49/x
  3. Step 3: Cross multiply
    885,064,976.73x = 1,221,357,650.81 × 488,579,450.49
  4. Step 4: Simplify right side
    885,064,976.73x = 596,730,249,882,064,256
  5. Step 5: Solve for x
    x = 596,730,249,882,064,256/885,064,976.73
  6. Step 6: Final answer
    x = 674,221,967.39

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1.5x scale

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.