Home / 30,139,578,919.32-45,216,179,359.36-9,970,957,457.57

Finding the Fourth Proportional to 30,139,578,919.32, 45,216,179,359.36 and 9,970,957,457.57

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Solution

The fourth proportional to 30,139,578,919.32, 45,216,179,359.36 and 9,970,957,457.57 is: 14,958,689,436.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139,578,919.32 : 45,216,179,359.36 = 9,970,957,457.57 : x
  2. Step 2: Convert to fraction form
    30,139,578,919.32/45,216,179,359.36 = 9,970,957,457.57/x
  3. Step 3: Cross multiply
    30,139,578,919.32x = 45,216,179,359.36 × 9,970,957,457.57
  4. Step 4: Simplify right side
    30,139,578,919.32x = 450,848,600,786,168,971,264
  5. Step 5: Solve for x
    x = 450,848,600,786,168,971,264/30,139,578,919.32
  6. Step 6: Final answer
    x = 14,958,689,436.01

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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.