Home / 68,170,041.72-94,076,979.05-40,316,628.42

Finding the Fourth Proportional to 68,170,041.72, 94,076,979.05 and 40,316,628.42

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Solution

The fourth proportional to 68,170,041.72, 94,076,979.05 and 40,316,628.42 is: 55,638,320.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,170,041.72 : 94,076,979.05 = 40,316,628.42 : x
  2. Step 2: Convert to fraction form
    68,170,041.72/94,076,979.05 = 40,316,628.42/x
  3. Step 3: Cross multiply
    68,170,041.72x = 94,076,979.05 × 40,316,628.42
  4. Step 4: Simplify right side
    68,170,041.72x = 3,792,866,607,023,816
  5. Step 5: Solve for x
    x = 3,792,866,607,023,816/68,170,041.72
  6. Step 6: Final answer
    x = 55,638,320.17

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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.