Home / 448,141,021.40-672,211,532.10-407,964,081.80

Finding the Fourth Proportional to 448,141,021.40, 672,211,532.10 and 407,964,081.80

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Solution

The fourth proportional to 448,141,021.40, 672,211,532.10 and 407,964,081.80 is: 611,946,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,141,021.40 : 672,211,532.10 = 407,964,081.80 : x
  2. Step 2: Convert to fraction form
    448,141,021.40/672,211,532.10 = 407,964,081.80/x
  3. Step 3: Cross multiply
    448,141,021.40x = 672,211,532.10 × 407,964,081.80
  4. Step 4: Simplify right side
    448,141,021.40x = 274,238,160,468,547,744
  5. Step 5: Solve for x
    x = 274,238,160,468,547,744/448,141,021.40
  6. Step 6: Final answer
    x = 611,946,122.70

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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.