Home / 738,051,412.75-1,018,532,207.24-408,047,809.39

Finding the Fourth Proportional to 738,051,412.75, 1,018,532,207.24 and 408,047,809.39

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Solution

The fourth proportional to 738,051,412.75, 1,018,532,207.24 and 408,047,809.39 is: 563,117,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,051,412.75 : 1,018,532,207.24 = 408,047,809.39 : x
  2. Step 2: Convert to fraction form
    738,051,412.75/1,018,532,207.24 = 408,047,809.39/x
  3. Step 3: Cross multiply
    738,051,412.75x = 1,018,532,207.24 × 408,047,809.39
  4. Step 4: Simplify right side
    738,051,412.75x = 415,609,835,957,443,456
  5. Step 5: Solve for x
    x = 415,609,835,957,443,456/738,051,412.75
  6. Step 6: Final answer
    x = 563,117,729.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.