Home / 139,968,368.20-209,924,558.70-67,185,008.20

Finding the Fourth Proportional to 139,968,368.20, 209,924,558.70 and 67,185,008.20

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Solution

The fourth proportional to 139,968,368.20, 209,924,558.70 and 67,185,008.20 is: 100,764,075.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,368.20 : 209,924,558.70 = 67,185,008.20 : x
  2. Step 2: Convert to fraction form
    139,968,368.20/209,924,558.70 = 67,185,008.20/x
  3. Step 3: Cross multiply
    139,968,368.20x = 209,924,558.70 × 67,185,008.20
  4. Step 4: Simplify right side
    139,968,368.20x = 14,103,783,197,640,882
  5. Step 5: Solve for x
    x = 14,103,783,197,640,882/139,968,368.20
  6. Step 6: Final answer
    x = 100,764,075.33

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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.