Home / 874,009,688.84-1,311,123,626.30-342,152,415.26

Finding the Fourth Proportional to 874,009,688.84, 1,311,123,626.30 and 342,152,415.26

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Solution

The fourth proportional to 874,009,688.84, 1,311,123,626.30 and 342,152,415.26 is: 513,271,330.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,009,688.84 : 1,311,123,626.30 = 342,152,415.26 : x
  2. Step 2: Convert to fraction form
    874,009,688.84/1,311,123,626.30 = 342,152,415.26/x
  3. Step 3: Cross multiply
    874,009,688.84x = 1,311,123,626.30 × 342,152,415.26
  4. Step 4: Simplify right side
    874,009,688.84x = 448,604,115,442,994,624
  5. Step 5: Solve for x
    x = 448,604,115,442,994,624/874,009,688.84
  6. Step 6: Final answer
    x = 513,271,330.02

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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.