Home / 12,586,064,108.40-18,879,096,162.60-8,447,490,284.40

Finding the Fourth Proportional to 12,586,064,108.40, 18,879,096,162.60 and 8,447,490,284.40

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Solution

The fourth proportional to 12,586,064,108.40, 18,879,096,162.60 and 8,447,490,284.40 is: 12,671,235,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586,064,108.40 : 18,879,096,162.60 = 8,447,490,284.40 : x
  2. Step 2: Convert to fraction form
    12,586,064,108.40/18,879,096,162.60 = 8,447,490,284.40/x
  3. Step 3: Cross multiply
    12,586,064,108.40x = 18,879,096,162.60 × 8,447,490,284.40
  4. Step 4: Simplify right side
    12,586,064,108.40x = 159,480,981,411,816,800,256
  5. Step 5: Solve for x
    x = 159,480,981,411,816,800,256/12,586,064,108.40
  6. Step 6: Final answer
    x = 12,671,235,426.60

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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.