Home / 358,467,143.22-537,796,398.51-128,459,478.42

Finding the Fourth Proportional to 358,467,143.22, 537,796,398.51 and 128,459,478.42

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Solution

The fourth proportional to 358,467,143.22, 537,796,398.51 and 128,459,478.42 is: 192,723,506.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,467,143.22 : 537,796,398.51 = 128,459,478.42 : x
  2. Step 2: Convert to fraction form
    358,467,143.22/537,796,398.51 = 128,459,478.42/x
  3. Step 3: Cross multiply
    358,467,143.22x = 537,796,398.51 × 128,459,478.42
  4. Step 4: Simplify right side
    358,467,143.22x = 69,085,044,848,749,064
  5. Step 5: Solve for x
    x = 69,085,044,848,749,064/358,467,143.22
  6. Step 6: Final answer
    x = 192,723,506.62

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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.