Home / 1,321,156,088.91-1,981,689,250.64-338,592,276.27

Finding the Fourth Proportional to 1,321,156,088.91, 1,981,689,250.64 and 338,592,276.27

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Solution

The fourth proportional to 1,321,156,088.91, 1,981,689,250.64 and 338,592,276.27 is: 507,876,911.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,156,088.91 : 1,981,689,250.64 = 338,592,276.27 : x
  2. Step 2: Convert to fraction form
    1,321,156,088.91/1,981,689,250.64 = 338,592,276.27/x
  3. Step 3: Cross multiply
    1,321,156,088.91x = 1,981,689,250.64 × 338,592,276.27
  4. Step 4: Simplify right side
    1,321,156,088.91x = 670,984,674,232,295,168
  5. Step 5: Solve for x
    x = 670,984,674,232,295,168/1,321,156,088.91
  6. Step 6: Final answer
    x = 507,876,911.64

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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.