Home / 919,906,966.80-1,379,860,450.20-552,574,947.60

Finding the Fourth Proportional to 919,906,966.80, 1,379,860,450.20 and 552,574,947.60

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Solution

The fourth proportional to 919,906,966.80, 1,379,860,450.20 and 552,574,947.60 is: 828,862,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,906,966.80 : 1,379,860,450.20 = 552,574,947.60 : x
  2. Step 2: Convert to fraction form
    919,906,966.80/1,379,860,450.20 = 552,574,947.60/x
  3. Step 3: Cross multiply
    919,906,966.80x = 1,379,860,450.20 × 552,574,947.60
  4. Step 4: Simplify right side
    919,906,966.80x = 762,476,315,964,577,408
  5. Step 5: Solve for x
    x = 762,476,315,964,577,408/919,906,966.80
  6. Step 6: Final answer
    x = 828,862,421.40

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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.