Home / 21,275,142,408.10-31,912,713,612.15-9,665,636,616.10

Finding the Fourth Proportional to 21,275,142,408.10, 31,912,713,612.15 and 9,665,636,616.10

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Solution

The fourth proportional to 21,275,142,408.10, 31,912,713,612.15 and 9,665,636,616.10 is: 14,498,454,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,142,408.10 : 31,912,713,612.15 = 9,665,636,616.10 : x
  2. Step 2: Convert to fraction form
    21,275,142,408.10/31,912,713,612.15 = 9,665,636,616.10/x
  3. Step 3: Cross multiply
    21,275,142,408.10x = 31,912,713,612.15 × 9,665,636,616.10
  4. Step 4: Simplify right side
    21,275,142,408.10x = 308,456,693,208,709,988,352
  5. Step 5: Solve for x
    x = 308,456,693,208,709,988,352/21,275,142,408.10
  6. Step 6: Final answer
    x = 14,498,454,924.15

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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.