Home / 1,979,058,485.32-2,729,845,697.16-1,215,768,541.48

Finding the Fourth Proportional to 1,979,058,485.32, 2,729,845,697.16 and 1,215,768,541.48

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Solution

The fourth proportional to 1,979,058,485.32, 2,729,845,697.16 and 1,215,768,541.48 is: 1,676,989,612.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,058,485.32 : 2,729,845,697.16 = 1,215,768,541.48 : x
  2. Step 2: Convert to fraction form
    1,979,058,485.32/2,729,845,697.16 = 1,215,768,541.48/x
  3. Step 3: Cross multiply
    1,979,058,485.32x = 2,729,845,697.16 × 1,215,768,541.48
  4. Step 4: Simplify right side
    1,979,058,485.32x = 3,318,860,521,699,462,144
  5. Step 5: Solve for x
    x = 3,318,860,521,699,462,144/1,979,058,485.32
  6. Step 6: Final answer
    x = 1,676,989,612.14

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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.