Home / 830,514,017.10-1,245,771,025.65-817,600,000.80

Finding the Fourth Proportional to 830,514,017.10, 1,245,771,025.65 and 817,600,000.80

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Solution

The fourth proportional to 830,514,017.10, 1,245,771,025.65 and 817,600,000.80 is: 1,226,400,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,514,017.10 : 1,245,771,025.65 = 817,600,000.80 : x
  2. Step 2: Convert to fraction form
    830,514,017.10/1,245,771,025.65 = 817,600,000.80/x
  3. Step 3: Cross multiply
    830,514,017.10x = 1,245,771,025.65 × 817,600,000.80
  4. Step 4: Simplify right side
    830,514,017.10x = 1,018,542,391,568,056,832
  5. Step 5: Solve for x
    x = 1,018,542,391,568,056,832/830,514,017.10
  6. Step 6: Final answer
    x = 1,226,400,001.20

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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.