Home / 56,540,550,979.72-78,029,451,238.26-31,165,965,080.20

Finding the Fourth Proportional to 56,540,550,979.72, 78,029,451,238.26 and 31,165,965,080.20

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Solution

The fourth proportional to 56,540,550,979.72, 78,029,451,238.26 and 31,165,965,080.20 is: 43,010,956,037.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,540,550,979.72 : 78,029,451,238.26 = 31,165,965,080.20 : x
  2. Step 2: Convert to fraction form
    56,540,550,979.72/78,029,451,238.26 = 31,165,965,080.20/x
  3. Step 3: Cross multiply
    56,540,550,979.72x = 78,029,451,238.26 × 31,165,965,080.20
  4. Step 4: Simplify right side
    56,540,550,979.72x = 2,431,863,152,518,779,895,808
  5. Step 5: Solve for x
    x = 2,431,863,152,518,779,895,808/56,540,550,979.72
  6. Step 6: Final answer
    x = 43,010,956,037.39

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Double scale
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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.