Home / 1,393,848,085.70-2,090,772,128.55-976,631,471.30

Finding the Fourth Proportional to 1,393,848,085.70, 2,090,772,128.55 and 976,631,471.30

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Solution

The fourth proportional to 1,393,848,085.70, 2,090,772,128.55 and 976,631,471.30 is: 1,464,947,206.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,848,085.70 : 2,090,772,128.55 = 976,631,471.30 : x
  2. Step 2: Convert to fraction form
    1,393,848,085.70/2,090,772,128.55 = 976,631,471.30/x
  3. Step 3: Cross multiply
    1,393,848,085.70x = 2,090,772,128.55 × 976,631,471.30
  4. Step 4: Simplify right side
    1,393,848,085.70x = 2,041,913,860,058,819,072
  5. Step 5: Solve for x
    x = 2,041,913,860,058,819,072/1,393,848,085.70
  6. Step 6: Final answer
    x = 1,464,947,206.95

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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.