Home / 915,650,973.41-1,263,586,342.59-497,954,356.25

Finding the Fourth Proportional to 915,650,973.41, 1,263,586,342.59 and 497,954,356.25

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Solution

The fourth proportional to 915,650,973.41, 1,263,586,342.59 and 497,954,356.25 is: 687,170,485.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,650,973.41 : 1,263,586,342.59 = 497,954,356.25 : x
  2. Step 2: Convert to fraction form
    915,650,973.41/1,263,586,342.59 = 497,954,356.25/x
  3. Step 3: Cross multiply
    915,650,973.41x = 1,263,586,342.59 × 497,954,356.25
  4. Step 4: Simplify right side
    915,650,973.41x = 629,208,323,784,377,472
  5. Step 5: Solve for x
    x = 629,208,323,784,377,472/915,650,973.41
  6. Step 6: Final answer
    x = 687,170,485.33

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Double scale
Find fourth proportional to 915,650,974.41, 1,263,586,343.97 and 497,954,357.25
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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.