Home / 402,840,014.40-604,260,021.60-211,338,907.20

Finding the Fourth Proportional to 402,840,014.40, 604,260,021.60 and 211,338,907.20

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Solution

The fourth proportional to 402,840,014.40, 604,260,021.60 and 211,338,907.20 is: 317,008,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,840,014.40 : 604,260,021.60 = 211,338,907.20 : x
  2. Step 2: Convert to fraction form
    402,840,014.40/604,260,021.60 = 211,338,907.20/x
  3. Step 3: Cross multiply
    402,840,014.40x = 604,260,021.60 × 211,338,907.20
  4. Step 4: Simplify right side
    402,840,014.40x = 127,703,652,629,592,400
  5. Step 5: Solve for x
    x = 127,703,652,629,592,400/402,840,014.40
  6. Step 6: Final answer
    x = 317,008,360.80

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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.