Home / 647,007,459.68-892,910,307.39-356,994,114.71

Finding the Fourth Proportional to 647,007,459.68, 892,910,307.39 and 356,994,114.71

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Solution

The fourth proportional to 647,007,459.68, 892,910,307.39 and 356,994,114.71 is: 492,673,955.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,007,459.68 : 892,910,307.39 = 356,994,114.71 : x
  2. Step 2: Convert to fraction form
    647,007,459.68/892,910,307.39 = 356,994,114.71/x
  3. Step 3: Cross multiply
    647,007,459.68x = 892,910,307.39 × 356,994,114.71
  4. Step 4: Simplify right side
    647,007,459.68x = 318,763,724,704,619,712
  5. Step 5: Solve for x
    x = 318,763,724,704,619,712/647,007,459.68
  6. Step 6: Final answer
    x = 492,673,955.97

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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.