Home / 8,520,964,085.80-12,781,446,128.70-6,454,721,477.80

Finding the Fourth Proportional to 8,520,964,085.80, 12,781,446,128.70 and 6,454,721,477.80

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Solution

The fourth proportional to 8,520,964,085.80, 12,781,446,128.70 and 6,454,721,477.80 is: 9,682,082,216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,964,085.80 : 12,781,446,128.70 = 6,454,721,477.80 : x
  2. Step 2: Convert to fraction form
    8,520,964,085.80/12,781,446,128.70 = 6,454,721,477.80/x
  3. Step 3: Cross multiply
    8,520,964,085.80x = 12,781,446,128.70 × 6,454,721,477.80
  4. Step 4: Simplify right side
    8,520,964,085.80x = 82,500,674,844,263,563,264
  5. Step 5: Solve for x
    x = 82,500,674,844,263,563,264/8,520,964,085.80
  6. Step 6: Final answer
    x = 9,682,082,216.70

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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.