Home / 21,275,148,935.40-31,912,723,403.10-20,984,911,290.60

Finding the Fourth Proportional to 21,275,148,935.40, 31,912,723,403.10 and 20,984,911,290.60

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Solution

The fourth proportional to 21,275,148,935.40, 31,912,723,403.10 and 20,984,911,290.60 is: 31,477,366,935.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,148,935.40 : 31,912,723,403.10 = 20,984,911,290.60 : x
  2. Step 2: Convert to fraction form
    21,275,148,935.40/31,912,723,403.10 = 20,984,911,290.60/x
  3. Step 3: Cross multiply
    21,275,148,935.40x = 31,912,723,403.10 × 20,984,911,290.60
  4. Step 4: Simplify right side
    21,275,148,935.40x = 669,685,669,655,508,025,344
  5. Step 5: Solve for x
    x = 669,685,669,655,508,025,344/21,275,148,935.40
  6. Step 6: Final answer
    x = 31,477,366,935.90

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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.