Home / 154,756,426.64-213,563,861.70-85,140,314.06

Finding the Fourth Proportional to 154,756,426.64, 213,563,861.70 and 85,140,314.06

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Solution

The fourth proportional to 154,756,426.64, 213,563,861.70 and 85,140,314.06 is: 117,493,629.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,756,426.64 : 213,563,861.70 = 85,140,314.06 : x
  2. Step 2: Convert to fraction form
    154,756,426.64/213,563,861.70 = 85,140,314.06/x
  3. Step 3: Cross multiply
    154,756,426.64x = 213,563,861.70 × 85,140,314.06
  4. Step 4: Simplify right side
    154,756,426.64x = 18,182,894,257,004,404
  5. Step 5: Solve for x
    x = 18,182,894,257,004,404/154,756,426.64
  6. Step 6: Final answer
    x = 117,493,629.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.