Home / 319,800,271.49-478,315,587.89-188,329,158.48

Finding the Fourth Proportional to 319,800,271.49, 478,315,587.89 and 188,329,158.48

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Solution

The fourth proportional to 319,800,271.49, 478,315,587.89 and 188,329,158.48 is: 281,678,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,800,271.49 : 478,315,587.89 = 188,329,158.48 : x
  2. Step 2: Convert to fraction form
    319,800,271.49/478,315,587.89 = 188,329,158.48/x
  3. Step 3: Cross multiply
    319,800,271.49x = 478,315,587.89 × 188,329,158.48
  4. Step 4: Simplify right side
    319,800,271.49x = 90,080,772,155,660,992
  5. Step 5: Solve for x
    x = 90,080,772,155,660,992/319,800,271.49
  6. Step 6: Final answer
    x = 281,678,222.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.