Home / 1,225,973,871.23-1,692,807,919.67-987,060,137.63

Finding the Fourth Proportional to 1,225,973,871.23, 1,692,807,919.67 and 987,060,137.63

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Solution

The fourth proportional to 1,225,973,871.23, 1,692,807,919.67 and 987,060,137.63 is: 1,362,919,110.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,973,871.23 : 1,692,807,919.67 = 987,060,137.63 : x
  2. Step 2: Convert to fraction form
    1,225,973,871.23/1,692,807,919.67 = 987,060,137.63/x
  3. Step 3: Cross multiply
    1,225,973,871.23x = 1,692,807,919.67 × 987,060,137.63
  4. Step 4: Simplify right side
    1,225,973,871.23x = 1,670,903,218,164,627,712
  5. Step 5: Solve for x
    x = 1,670,903,218,164,627,712/1,225,973,871.23
  6. Step 6: Final answer
    x = 1,362,919,110.58

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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.