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Finding the Fourth Proportional to 647,440,245.60, 971,160,368.40 and 450,169,346.40

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Solution

The fourth proportional to 647,440,245.60, 971,160,368.40 and 450,169,346.40 is: 675,254,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,440,245.60 : 971,160,368.40 = 450,169,346.40 : x
  2. Step 2: Convert to fraction form
    647,440,245.60/971,160,368.40 = 450,169,346.40/x
  3. Step 3: Cross multiply
    647,440,245.60x = 971,160,368.40 × 450,169,346.40
  4. Step 4: Simplify right side
    647,440,245.60x = 437,186,628,292,211,200
  5. Step 5: Solve for x
    x = 437,186,628,292,211,200/647,440,245.60
  6. Step 6: Final answer
    x = 675,254,019.60

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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.