Home / 780,018,768-1,076,426,055.36-432,338,256

Finding the Fourth Proportional to 780,018,768, 1,076,426,055.36 and 432,338,256

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Solution

The fourth proportional to 780,018,768, 1,076,426,055.36 and 432,338,256 is: 596,626,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,018,768 : 1,076,426,055.36 = 432,338,256 : x
  2. Step 2: Convert to fraction form
    780,018,768/1,076,426,055.36 = 432,338,256/x
  3. Step 3: Cross multiply
    780,018,768x = 1,076,426,055.36 × 432,338,256
  4. Step 4: Simplify right side
    780,018,768x = 465,380,163,487,301,824
  5. Step 5: Solve for x
    x = 465,380,163,487,301,824/780,018,768
  6. Step 6: Final answer
    x = 596,626,879.48

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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.