Home / 21,275,142,401.10-31,912,713,601.65-9,665,636,609.10

Finding the Fourth Proportional to 21,275,142,401.10, 31,912,713,601.65 and 9,665,636,609.10

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Solution

The fourth proportional to 21,275,142,401.10, 31,912,713,601.65 and 9,665,636,609.10 is: 14,498,454,913.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,142,401.10 : 31,912,713,601.65 = 9,665,636,609.10 : x
  2. Step 2: Convert to fraction form
    21,275,142,401.10/31,912,713,601.65 = 9,665,636,609.10/x
  3. Step 3: Cross multiply
    21,275,142,401.10x = 31,912,713,601.65 × 9,665,636,609.10
  4. Step 4: Simplify right side
    21,275,142,401.10x = 308,456,692,883,831,783,424
  5. Step 5: Solve for x
    x = 308,456,692,883,831,783,424/21,275,142,401.10
  6. Step 6: Final answer
    x = 14,498,454,913.65

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Double scale
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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.