Home / 375,670,871.49-518,426,412.53-208,407,137.04

Finding the Fourth Proportional to 375,670,871.49, 518,426,412.53 and 208,407,137.04

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Solution

The fourth proportional to 375,670,871.49, 518,426,412.53 and 208,407,137.04 is: 287,602,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,670,871.49 : 518,426,412.53 = 208,407,137.04 : x
  2. Step 2: Convert to fraction form
    375,670,871.49/518,426,412.53 = 208,407,137.04/x
  3. Step 3: Cross multiply
    375,670,871.49x = 518,426,412.53 × 208,407,137.04
  4. Step 4: Simplify right side
    375,670,871.49x = 108,043,764,400,795,280
  5. Step 5: Solve for x
    x = 108,043,764,400,795,280/375,670,871.49
  6. Step 6: Final answer
    x = 287,602,187.45

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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.