Home / 154,756,322.58-213,563,717.94-85,140,208.79

Finding the Fourth Proportional to 154,756,322.58, 213,563,717.94 and 85,140,208.79

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Solution

The fourth proportional to 154,756,322.58, 213,563,717.94 and 85,140,208.79 is: 117,493,484.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,756,322.58 : 213,563,717.94 = 85,140,208.79 : x
  2. Step 2: Convert to fraction form
    154,756,322.58/213,563,717.94 = 85,140,208.79/x
  3. Step 3: Cross multiply
    154,756,322.58x = 213,563,717.94 × 85,140,208.79
  4. Step 4: Simplify right side
    154,756,322.58x = 18,182,859,534,312,448
  5. Step 5: Solve for x
    x = 18,182,859,534,312,448/154,756,322.58
  6. Step 6: Final answer
    x = 117,493,484.15

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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.