Home / 1,393,848,036.20-2,090,772,054.30-976,631,421.80

Finding the Fourth Proportional to 1,393,848,036.20, 2,090,772,054.30 and 976,631,421.80

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Solution

The fourth proportional to 1,393,848,036.20, 2,090,772,054.30 and 976,631,421.80 is: 1,464,947,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,848,036.20 : 2,090,772,054.30 = 976,631,421.80 : x
  2. Step 2: Convert to fraction form
    1,393,848,036.20/2,090,772,054.30 = 976,631,421.80/x
  3. Step 3: Cross multiply
    1,393,848,036.20x = 2,090,772,054.30 × 976,631,421.80
  4. Step 4: Simplify right side
    1,393,848,036.20x = 2,041,913,684,050,715,648
  5. Step 5: Solve for x
    x = 2,041,913,684,050,715,648/1,393,848,036.20
  6. Step 6: Final answer
    x = 1,464,947,132.70

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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.