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Finding the Fourth Proportional to 260,761,208,280.60, 391,141,812,420.90 and 260,761,208,280.60

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Solution

The fourth proportional to 260,761,208,280.60, 391,141,812,420.90 and 260,761,208,280.60 is: 391,141,812,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,761,208,280.60 : 391,141,812,420.90 = 260,761,208,280.60 : x
  2. Step 2: Convert to fraction form
    260,761,208,280.60/391,141,812,420.90 = 260,761,208,280.60/x
  3. Step 3: Cross multiply
    260,761,208,280.60x = 391,141,812,420.90 × 260,761,208,280.60
  4. Step 4: Simplify right side
    260,761,208,280.60x = 101,994,611,615,937,683,521,536
  5. Step 5: Solve for x
    x = 101,994,611,615,937,683,521,536/260,761,208,280.60
  6. Step 6: Final answer
    x = 391,141,812,420.90

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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.