Home / 208,519,867.60-287,738,399.12-123,732,377.06

Finding the Fourth Proportional to 208,519,867.60, 287,738,399.12 and 123,732,377.06

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Solution

The fourth proportional to 208,519,867.60, 287,738,399.12 and 123,732,377.06 is: 170,739,395.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,519,867.60 : 287,738,399.12 = 123,732,377.06 : x
  2. Step 2: Convert to fraction form
    208,519,867.60/287,738,399.12 = 123,732,377.06/x
  3. Step 3: Cross multiply
    208,519,867.60x = 287,738,399.12 × 123,732,377.06
  4. Step 4: Simplify right side
    208,519,867.60x = 35,602,556,094,119,224
  5. Step 5: Solve for x
    x = 35,602,556,094,119,224/208,519,867.60
  6. Step 6: Final answer
    x = 170,739,395.26

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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.