Home / 154,631,605.86-213,378,995.25-91,041,907.86

Finding the Fourth Proportional to 154,631,605.86, 213,378,995.25 and 91,041,907.86

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Solution

The fourth proportional to 154,631,605.86, 213,378,995.25 and 91,041,907.86 is: 125,630,402.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,631,605.86 : 213,378,995.25 = 91,041,907.86 : x
  2. Step 2: Convert to fraction form
    154,631,605.86/213,378,995.25 = 91,041,907.86/x
  3. Step 3: Cross multiply
    154,631,605.86x = 213,378,995.25 × 91,041,907.86
  4. Step 4: Simplify right side
    154,631,605.86x = 19,426,430,824,809,876
  5. Step 5: Solve for x
    x = 19,426,430,824,809,876/154,631,605.86
  6. Step 6: Final answer
    x = 125,630,402.12

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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.