Home / 445,830,355.40-668,745,533.10-139,082,610.20

Finding the Fourth Proportional to 445,830,355.40, 668,745,533.10 and 139,082,610.20

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Solution

The fourth proportional to 445,830,355.40, 668,745,533.10 and 139,082,610.20 is: 208,623,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,830,355.40 : 668,745,533.10 = 139,082,610.20 : x
  2. Step 2: Convert to fraction form
    445,830,355.40/668,745,533.10 = 139,082,610.20/x
  3. Step 3: Cross multiply
    445,830,355.40x = 668,745,533.10 × 139,082,610.20
  4. Step 4: Simplify right side
    445,830,355.40x = 93,010,874,303,138,496
  5. Step 5: Solve for x
    x = 93,010,874,303,138,496/445,830,355.40
  6. Step 6: Final answer
    x = 208,623,915.30

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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.