Home / 780,109,351.65-1,076,550,645.51-427,677,775.34

Finding the Fourth Proportional to 780,109,351.65, 1,076,550,645.51 and 427,677,775.34

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Solution

The fourth proportional to 780,109,351.65, 1,076,550,645.51 and 427,677,775.34 is: 590,195,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,109,351.65 : 1,076,550,645.51 = 427,677,775.34 : x
  2. Step 2: Convert to fraction form
    780,109,351.65/1,076,550,645.51 = 427,677,775.34/x
  3. Step 3: Cross multiply
    780,109,351.65x = 1,076,550,645.51 × 427,677,775.34
  4. Step 4: Simplify right side
    780,109,351.65x = 460,416,785,107,174,976
  5. Step 5: Solve for x
    x = 460,416,785,107,174,976/780,109,351.65
  6. Step 6: Final answer
    x = 590,195,187.55

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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.