Home / 30,139,578,921.82-45,216,179,363.12-9,970,957,460.08

Finding the Fourth Proportional to 30,139,578,921.82, 45,216,179,363.12 and 9,970,957,460.08

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Solution

The fourth proportional to 30,139,578,921.82, 45,216,179,363.12 and 9,970,957,460.08 is: 14,958,689,439.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139,578,921.82 : 45,216,179,363.12 = 9,970,957,460.08 : x
  2. Step 2: Convert to fraction form
    30,139,578,921.82/45,216,179,363.12 = 9,970,957,460.08/x
  3. Step 3: Cross multiply
    30,139,578,921.82x = 45,216,179,363.12 × 9,970,957,460.08
  4. Step 4: Simplify right side
    30,139,578,921.82x = 450,848,600,937,016,721,408
  5. Step 5: Solve for x
    x = 450,848,600,937,016,721,408/30,139,578,921.82
  6. Step 6: Final answer
    x = 14,958,689,439.77

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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.