Home / 521,526,582.82-719,746,714.90-298,578,193.12

Finding the Fourth Proportional to 521,526,582.82, 719,746,714.90 and 298,578,193.12

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Solution

The fourth proportional to 521,526,582.82, 719,746,714.90 and 298,578,193.12 is: 412,060,824.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,526,582.82 : 719,746,714.90 = 298,578,193.12 : x
  2. Step 2: Convert to fraction form
    521,526,582.82/719,746,714.90 = 298,578,193.12/x
  3. Step 3: Cross multiply
    521,526,582.82x = 719,746,714.90 × 298,578,193.12
  4. Step 4: Simplify right side
    521,526,582.82x = 214,900,673,638,897,792
  5. Step 5: Solve for x
    x = 214,900,673,638,897,792/521,526,582.82
  6. Step 6: Final answer
    x = 412,060,824.35

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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.