Home / 889,663,415.88-1,227,735,487.38-493,185,400.74

Finding the Fourth Proportional to 889,663,415.88, 1,227,735,487.38 and 493,185,400.74

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Solution

The fourth proportional to 889,663,415.88, 1,227,735,487.38 and 493,185,400.74 is: 680,595,838.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,663,415.88 : 1,227,735,487.38 = 493,185,400.74 : x
  2. Step 2: Convert to fraction form
    889,663,415.88/1,227,735,487.38 = 493,185,400.74/x
  3. Step 3: Cross multiply
    889,663,415.88x = 1,227,735,487.38 × 493,185,400.74
  4. Step 4: Simplify right side
    889,663,415.88x = 605,501,218,346,224,640
  5. Step 5: Solve for x
    x = 605,501,218,346,224,640/889,663,415.88
  6. Step 6: Final answer
    x = 680,595,838.31

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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.