Home / 154,756,425.64-213,563,860.32-85,140,313.06

Finding the Fourth Proportional to 154,756,425.64, 213,563,860.32 and 85,140,313.06

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Solution

The fourth proportional to 154,756,425.64, 213,563,860.32 and 85,140,313.06 is: 117,493,628.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,756,425.64 : 213,563,860.32 = 85,140,313.06 : x
  2. Step 2: Convert to fraction form
    154,756,425.64/213,563,860.32 = 85,140,313.06/x
  3. Step 3: Cross multiply
    154,756,425.64x = 213,563,860.32 × 85,140,313.06
  4. Step 4: Simplify right side
    154,756,425.64x = 18,182,893,925,946,912
  5. Step 5: Solve for x
    x = 18,182,893,925,946,912/154,756,425.64
  6. Step 6: Final answer
    x = 117,493,628.14

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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.