Home / 948,912,138.40-1,420,979,420.40-624,037,079.20

Finding the Fourth Proportional to 948,912,138.40, 1,420,979,420.40 and 624,037,079.20

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Solution

The fourth proportional to 948,912,138.40, 1,420,979,420.40 and 624,037,079.20 is: 934,484,670.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,912,138.40 : 1,420,979,420.40 = 624,037,079.20 : x
  2. Step 2: Convert to fraction form
    948,912,138.40/1,420,979,420.40 = 624,037,079.20/x
  3. Step 3: Cross multiply
    948,912,138.40x = 1,420,979,420.40 × 624,037,079.20
  4. Step 4: Simplify right side
    948,912,138.40x = 886,743,847,109,725,056
  5. Step 5: Solve for x
    x = 886,743,847,109,725,056/948,912,138.40
  6. Step 6: Final answer
    x = 934,484,670.63

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1.5x scale

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.