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Finding the Fourth Proportional to 305,339,543.40, 458,009,315.10 and 305,339,543.40

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Solution

The fourth proportional to 305,339,543.40, 458,009,315.10 and 305,339,543.40 is: 458,009,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,339,543.40 : 458,009,315.10 = 305,339,543.40 : x
  2. Step 2: Convert to fraction form
    305,339,543.40/458,009,315.10 = 305,339,543.40/x
  3. Step 3: Cross multiply
    305,339,543.40x = 458,009,315.10 × 305,339,543.40
  4. Step 4: Simplify right side
    305,339,543.40x = 139,848,355,145,580,720
  5. Step 5: Solve for x
    x = 139,848,355,145,580,720/305,339,543.40
  6. Step 6: Final answer
    x = 458,009,315.10

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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.