Home / 212,872,001.80-319,308,002.70-98,080,745.80

Finding the Fourth Proportional to 212,872,001.80, 319,308,002.70 and 98,080,745.80

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Solution

The fourth proportional to 212,872,001.80, 319,308,002.70 and 98,080,745.80 is: 147,121,118.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,872,001.80 : 319,308,002.70 = 98,080,745.80 : x
  2. Step 2: Convert to fraction form
    212,872,001.80/319,308,002.70 = 98,080,745.80/x
  3. Step 3: Cross multiply
    212,872,001.80x = 319,308,002.70 × 98,080,745.80
  4. Step 4: Simplify right side
    212,872,001.80x = 31,317,967,044,724,412
  5. Step 5: Solve for x
    x = 31,317,967,044,724,412/212,872,001.80
  6. Step 6: Final answer
    x = 147,121,118.70

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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.