Home / 8,640,865,643.40-12,961,298,465.10-8,302,255,057.80

Finding the Fourth Proportional to 8,640,865,643.40, 12,961,298,465.10 and 8,302,255,057.80

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Solution

The fourth proportional to 8,640,865,643.40, 12,961,298,465.10 and 8,302,255,057.80 is: 12,453,382,586.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640,865,643.40 : 12,961,298,465.10 = 8,302,255,057.80 : x
  2. Step 2: Convert to fraction form
    8,640,865,643.40/12,961,298,465.10 = 8,302,255,057.80/x
  3. Step 3: Cross multiply
    8,640,865,643.40x = 12,961,298,465.10 × 8,302,255,057.80
  4. Step 4: Simplify right side
    8,640,865,643.40x = 107,608,005,737,531,850,752
  5. Step 5: Solve for x
    x = 107,608,005,737,531,850,752/8,640,865,643.40
  6. Step 6: Final answer
    x = 12,453,382,586.70

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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.