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Finding the Fourth Proportional to 243,212,862.82, 364,743,841.82 and 87,746,459.51

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Solution

The fourth proportional to 243,212,862.82, 364,743,841.82 and 87,746,459.51 is: 131,592,467.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,212,862.82 : 364,743,841.82 = 87,746,459.51 : x
  2. Step 2: Convert to fraction form
    243,212,862.82/364,743,841.82 = 87,746,459.51/x
  3. Step 3: Cross multiply
    243,212,862.82x = 364,743,841.82 × 87,746,459.51
  4. Step 4: Simplify right side
    243,212,862.82x = 32,004,980,745,518,020
  5. Step 5: Solve for x
    x = 32,004,980,745,518,020/243,212,862.82
  6. Step 6: Final answer
    x = 131,592,467.50

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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.