Home / 304,722,430.40-457,083,645.60-212,889,425.60

Finding the Fourth Proportional to 304,722,430.40, 457,083,645.60 and 212,889,425.60

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Solution

The fourth proportional to 304,722,430.40, 457,083,645.60 and 212,889,425.60 is: 319,334,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,722,430.40 : 457,083,645.60 = 212,889,425.60 : x
  2. Step 2: Convert to fraction form
    304,722,430.40/457,083,645.60 = 212,889,425.60/x
  3. Step 3: Cross multiply
    304,722,430.40x = 457,083,645.60 × 212,889,425.60
  4. Step 4: Simplify right side
    304,722,430.40x = 97,308,274,762,937,968
  5. Step 5: Solve for x
    x = 97,308,274,762,937,968/304,722,430.40
  6. Step 6: Final answer
    x = 319,334,138.40

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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.