Home / 8,205,008,569.40-12,307,512,854.10-2,389,107,999.80

Finding the Fourth Proportional to 8,205,008,569.40, 12,307,512,854.10 and 2,389,107,999.80

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Solution

The fourth proportional to 8,205,008,569.40, 12,307,512,854.10 and 2,389,107,999.80 is: 3,583,661,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205,008,569.40 : 12,307,512,854.10 = 2,389,107,999.80 : x
  2. Step 2: Convert to fraction form
    8,205,008,569.40/12,307,512,854.10 = 2,389,107,999.80/x
  3. Step 3: Cross multiply
    8,205,008,569.40x = 12,307,512,854.10 × 2,389,107,999.80
  4. Step 4: Simplify right side
    8,205,008,569.40x = 29,403,977,417,371,643,904
  5. Step 5: Solve for x
    x = 29,403,977,417,371,643,904/8,205,008,569.40
  6. Step 6: Final answer
    x = 3,583,661,999.70

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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.