Home / 308,150,158.70-425,201,805.83-187,386,539.22

Finding the Fourth Proportional to 308,150,158.70, 425,201,805.83 and 187,386,539.22

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Solution

The fourth proportional to 308,150,158.70, 425,201,805.83 and 187,386,539.22 is: 258,565,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,150,158.70 : 425,201,805.83 = 187,386,539.22 : x
  2. Step 2: Convert to fraction form
    308,150,158.70/425,201,805.83 = 187,386,539.22/x
  3. Step 3: Cross multiply
    308,150,158.70x = 425,201,805.83 × 187,386,539.22
  4. Step 4: Simplify right side
    308,150,158.70x = 79,677,094,863,989,728
  5. Step 5: Solve for x
    x = 79,677,094,863,989,728/308,150,158.70
  6. Step 6: Final answer
    x = 258,565,808.30

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1.5x scale

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.