Home / 319,091,213.80-478,636,820.70-166,036,205.80

Finding the Fourth Proportional to 319,091,213.80, 478,636,820.70 and 166,036,205.80

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Solution

The fourth proportional to 319,091,213.80, 478,636,820.70 and 166,036,205.80 is: 249,054,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,091,213.80 : 478,636,820.70 = 166,036,205.80 : x
  2. Step 2: Convert to fraction form
    319,091,213.80/478,636,820.70 = 166,036,205.80/x
  3. Step 3: Cross multiply
    319,091,213.80x = 478,636,820.70 × 166,036,205.80
  4. Step 4: Simplify right side
    319,091,213.80x = 79,471,041,665,202,896
  5. Step 5: Solve for x
    x = 79,471,041,665,202,896/319,091,213.80
  6. Step 6: Final answer
    x = 249,054,308.70

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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.