Home / 445,830,350.40-668,745,525.60-139,082,605.20

Finding the Fourth Proportional to 445,830,350.40, 668,745,525.60 and 139,082,605.20

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Solution

The fourth proportional to 445,830,350.40, 668,745,525.60 and 139,082,605.20 is: 208,623,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,830,350.40 : 668,745,525.60 = 139,082,605.20 : x
  2. Step 2: Convert to fraction form
    445,830,350.40/668,745,525.60 = 139,082,605.20/x
  3. Step 3: Cross multiply
    445,830,350.40x = 668,745,525.60 × 139,082,605.20
  4. Step 4: Simplify right side
    445,830,350.40x = 93,010,869,916,291,296
  5. Step 5: Solve for x
    x = 93,010,869,916,291,296/445,830,350.40
  6. Step 6: Final answer
    x = 208,623,907.80

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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.