Home / 415,358,963.82-573,371,861.22-258,803,421.48

Finding the Fourth Proportional to 415,358,963.82, 573,371,861.22 and 258,803,421.48

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Solution

The fourth proportional to 415,358,963.82, 573,371,861.22 and 258,803,421.48 is: 357,258,690.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,358,963.82 : 573,371,861.22 = 258,803,421.48 : x
  2. Step 2: Convert to fraction form
    415,358,963.82/573,371,861.22 = 258,803,421.48/x
  3. Step 3: Cross multiply
    415,358,963.82x = 573,371,861.22 × 258,803,421.48
  4. Step 4: Simplify right side
    415,358,963.82x = 148,390,599,464,091,744
  5. Step 5: Solve for x
    x = 148,390,599,464,091,744/415,358,963.82
  6. Step 6: Final answer
    x = 357,258,690.41

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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.