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Finding the Fourth Proportional to 518,341,849.45, 777,512,774.18 and 518,341,849.45

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Solution

The fourth proportional to 518,341,849.45, 777,512,774.18 and 518,341,849.45 is: 777,512,774.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,341,849.45 : 777,512,774.18 = 518,341,849.45 : x
  2. Step 2: Convert to fraction form
    518,341,849.45/777,512,774.18 = 518,341,849.45/x
  3. Step 3: Cross multiply
    518,341,849.45x = 777,512,774.18 × 518,341,849.45
  4. Step 4: Simplify right side
    518,341,849.45x = 403,017,409,336,869,632
  5. Step 5: Solve for x
    x = 403,017,409,336,869,632/518,341,849.45
  6. Step 6: Final answer
    x = 777,512,774.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.