Home / 375,670,871.74-518,426,412.88-208,407,137.29

Finding the Fourth Proportional to 375,670,871.74, 518,426,412.88 and 208,407,137.29

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Solution

The fourth proportional to 375,670,871.74, 518,426,412.88 and 208,407,137.29 is: 287,602,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,670,871.74 : 518,426,412.88 = 208,407,137.29 : x
  2. Step 2: Convert to fraction form
    375,670,871.74/518,426,412.88 = 208,407,137.29/x
  3. Step 3: Cross multiply
    375,670,871.74x = 518,426,412.88 × 208,407,137.29
  4. Step 4: Simplify right side
    375,670,871.74x = 108,043,764,602,548,320
  5. Step 5: Solve for x
    x = 108,043,764,602,548,320/375,670,871.74
  6. Step 6: Final answer
    x = 287,602,187.79

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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.