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Finding the Fourth Proportional to 408,832,814.40, 613,249,221.60 and 408,832,814.40

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Solution

The fourth proportional to 408,832,814.40, 613,249,221.60 and 408,832,814.40 is: 613,249,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,832,814.40 : 613,249,221.60 = 408,832,814.40 : x
  2. Step 2: Convert to fraction form
    408,832,814.40/613,249,221.60 = 408,832,814.40/x
  3. Step 3: Cross multiply
    408,832,814.40x = 613,249,221.60 × 408,832,814.40
  4. Step 4: Simplify right side
    408,832,814.40x = 250,716,405,195,337,280
  5. Step 5: Solve for x
    x = 250,716,405,195,337,280/408,832,814.40
  6. Step 6: Final answer
    x = 613,249,221.60

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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.