Home / 154,769,895.64-213,578,051.70-85,155,323.68

Finding the Fourth Proportional to 154,769,895.64, 213,578,051.70 and 85,155,323.68

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Solution

The fourth proportional to 154,769,895.64, 213,578,051.70 and 85,155,323.68 is: 117,511,923.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,769,895.64 : 213,578,051.70 = 85,155,323.68 : x
  2. Step 2: Convert to fraction form
    154,769,895.64/213,578,051.70 = 85,155,323.68/x
  3. Step 3: Cross multiply
    154,769,895.64x = 213,578,051.70 × 85,155,323.68
  4. Step 4: Simplify right side
    154,769,895.64x = 18,187,308,123,457,276
  5. Step 5: Solve for x
    x = 18,187,308,123,457,276/154,769,895.64
  6. Step 6: Final answer
    x = 117,511,923.42

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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.