Home / 445,830,353.40-668,745,530.10-139,082,608.20

Finding the Fourth Proportional to 445,830,353.40, 668,745,530.10 and 139,082,608.20

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Solution

The fourth proportional to 445,830,353.40, 668,745,530.10 and 139,082,608.20 is: 208,623,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,830,353.40 : 668,745,530.10 = 139,082,608.20 : x
  2. Step 2: Convert to fraction form
    445,830,353.40/668,745,530.10 = 139,082,608.20/x
  3. Step 3: Cross multiply
    445,830,353.40x = 668,745,530.10 × 139,082,608.20
  4. Step 4: Simplify right side
    445,830,353.40x = 93,010,872,548,399,600
  5. Step 5: Solve for x
    x = 93,010,872,548,399,600/445,830,353.40
  6. Step 6: Final answer
    x = 208,623,912.30

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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.