Home / 1,438,643,502.40-2,157,965,253.60-973,738,915.60

Finding the Fourth Proportional to 1,438,643,502.40, 2,157,965,253.60 and 973,738,915.60

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Solution

The fourth proportional to 1,438,643,502.40, 2,157,965,253.60 and 973,738,915.60 is: 1,460,608,373.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,643,502.40 : 2,157,965,253.60 = 973,738,915.60 : x
  2. Step 2: Convert to fraction form
    1,438,643,502.40/2,157,965,253.60 = 973,738,915.60/x
  3. Step 3: Cross multiply
    1,438,643,502.40x = 2,157,965,253.60 × 973,738,915.60
  4. Step 4: Simplify right side
    1,438,643,502.40x = 2,101,294,745,942,942,976
  5. Step 5: Solve for x
    x = 2,101,294,745,942,942,976/1,438,643,502.40
  6. Step 6: Final answer
    x = 1,460,608,373.40

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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.