Home / 830,514,014.10-1,245,771,021.15-817,599,997.80

Finding the Fourth Proportional to 830,514,014.10, 1,245,771,021.15 and 817,599,997.80

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Solution

The fourth proportional to 830,514,014.10, 1,245,771,021.15 and 817,599,997.80 is: 1,226,399,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,514,014.10 : 1,245,771,021.15 = 817,599,997.80 : x
  2. Step 2: Convert to fraction form
    830,514,014.10/1,245,771,021.15 = 817,599,997.80/x
  3. Step 3: Cross multiply
    830,514,014.10x = 1,245,771,021.15 × 817,599,997.80
  4. Step 4: Simplify right side
    830,514,014.10x = 1,018,542,384,151,543,808
  5. Step 5: Solve for x
    x = 1,018,542,384,151,543,808/830,514,014.10
  6. Step 6: Final answer
    x = 1,226,399,996.70

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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.