Home / 489,920,439.60-734,880,659.40-440,035,844.40

Finding the Fourth Proportional to 489,920,439.60, 734,880,659.40 and 440,035,844.40

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Solution

The fourth proportional to 489,920,439.60, 734,880,659.40 and 440,035,844.40 is: 660,053,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,920,439.60 : 734,880,659.40 = 440,035,844.40 : x
  2. Step 2: Convert to fraction form
    489,920,439.60/734,880,659.40 = 440,035,844.40/x
  3. Step 3: Cross multiply
    489,920,439.60x = 734,880,659.40 × 440,035,844.40
  4. Step 4: Simplify right side
    489,920,439.60x = 323,373,831,492,307,776
  5. Step 5: Solve for x
    x = 323,373,831,492,307,776/489,920,439.60
  6. Step 6: Final answer
    x = 660,053,766.60

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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.