Home / 7,478,770,369-10,321,006,995.30-4,137,211,039.72

Finding the Fourth Proportional to 7,478,770,369, 10,321,006,995.30 and 4,137,211,039.72

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Solution

The fourth proportional to 7,478,770,369, 10,321,006,995.30 and 4,137,211,039.72 is: 5,709,519,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478,770,369 : 10,321,006,995.30 = 4,137,211,039.72 : x
  2. Step 2: Convert to fraction form
    7,478,770,369/10,321,006,995.30 = 4,137,211,039.72/x
  3. Step 3: Cross multiply
    7,478,770,369x = 10,321,006,995.30 × 4,137,211,039.72
  4. Step 4: Simplify right side
    7,478,770,369x = 42,700,184,081,982,496,768
  5. Step 5: Solve for x
    x = 42,700,184,081,982,496,768/7,478,770,369
  6. Step 6: Final answer
    x = 5,709,519,342.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.