Home / 21,275,136,008.40-31,912,704,012.60-9,665,630,216.40

Finding the Fourth Proportional to 21,275,136,008.40, 31,912,704,012.60 and 9,665,630,216.40

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Solution

The fourth proportional to 21,275,136,008.40, 31,912,704,012.60 and 9,665,630,216.40 is: 14,498,445,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,136,008.40 : 31,912,704,012.60 = 9,665,630,216.40 : x
  2. Step 2: Convert to fraction form
    21,275,136,008.40/31,912,704,012.60 = 9,665,630,216.40/x
  3. Step 3: Cross multiply
    21,275,136,008.40x = 31,912,704,012.60 × 9,665,630,216.40
  4. Step 4: Simplify right side
    21,275,136,008.40x = 308,456,396,191,216,041,984
  5. Step 5: Solve for x
    x = 308,456,396,191,216,041,984/21,275,136,008.40
  6. Step 6: Final answer
    x = 14,498,445,324.60

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1.5x scale

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.