Home / 30,139,578,921.82-45,216,179,363.11-9,970,957,460.07

Finding the Fourth Proportional to 30,139,578,921.82, 45,216,179,363.11 and 9,970,957,460.07

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Solution

The fourth proportional to 30,139,578,921.82, 45,216,179,363.11 and 9,970,957,460.07 is: 14,958,689,439.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139,578,921.82 : 45,216,179,363.11 = 9,970,957,460.07 : x
  2. Step 2: Convert to fraction form
    30,139,578,921.82/45,216,179,363.11 = 9,970,957,460.07/x
  3. Step 3: Cross multiply
    30,139,578,921.82x = 45,216,179,363.11 × 9,970,957,460.07
  4. Step 4: Simplify right side
    30,139,578,921.82x = 450,848,600,936,464,842,752
  5. Step 5: Solve for x
    x = 450,848,600,936,464,842,752/30,139,578,921.82
  6. Step 6: Final answer
    x = 14,958,689,439.75

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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.