Home / 1,112,526,876.42-1,667,520,865.80-448,115,643.36

Finding the Fourth Proportional to 1,112,526,876.42, 1,667,520,865.80 and 448,115,643.36

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Solution

The fourth proportional to 1,112,526,876.42, 1,667,520,865.80 and 448,115,643.36 is: 671,662,142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,526,876.42 : 1,667,520,865.80 = 448,115,643.36 : x
  2. Step 2: Convert to fraction form
    1,112,526,876.42/1,667,520,865.80 = 448,115,643.36/x
  3. Step 3: Cross multiply
    1,112,526,876.42x = 1,667,520,865.80 × 448,115,643.36
  4. Step 4: Simplify right side
    1,112,526,876.42x = 747,242,185,594,191,232
  5. Step 5: Solve for x
    x = 747,242,185,594,191,232/1,112,526,876.42
  6. Step 6: Final answer
    x = 671,662,142.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.