Home / 30,139,578,920.32-45,216,179,360.86-9,970,957,458.58

Finding the Fourth Proportional to 30,139,578,920.32, 45,216,179,360.86 and 9,970,957,458.58

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Solution

The fourth proportional to 30,139,578,920.32, 45,216,179,360.86 and 9,970,957,458.58 is: 14,958,689,437.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139,578,920.32 : 45,216,179,360.86 = 9,970,957,458.58 : x
  2. Step 2: Convert to fraction form
    30,139,578,920.32/45,216,179,360.86 = 9,970,957,458.58/x
  3. Step 3: Cross multiply
    30,139,578,920.32x = 45,216,179,360.86 × 9,970,957,458.58
  4. Step 4: Simplify right side
    30,139,578,920.32x = 450,848,600,846,432,010,240
  5. Step 5: Solve for x
    x = 450,848,600,846,432,010,240/30,139,578,920.32
  6. Step 6: Final answer
    x = 14,958,689,437.51

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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.