Home / 671,434,712.70-1,007,152,069.05-398,665,074.30

Finding the Fourth Proportional to 671,434,712.70, 1,007,152,069.05 and 398,665,074.30

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Solution

The fourth proportional to 671,434,712.70, 1,007,152,069.05 and 398,665,074.30 is: 597,997,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,434,712.70 : 1,007,152,069.05 = 398,665,074.30 : x
  2. Step 2: Convert to fraction form
    671,434,712.70/1,007,152,069.05 = 398,665,074.30/x
  3. Step 3: Cross multiply
    671,434,712.70x = 1,007,152,069.05 × 398,665,074.30
  4. Step 4: Simplify right side
    671,434,712.70x = 401,516,354,439,216,960
  5. Step 5: Solve for x
    x = 401,516,354,439,216,960/671,434,712.70
  6. Step 6: Final answer
    x = 597,997,611.45

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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.