Home / 920,706,877.80-1,381,060,316.70-553,374,858.60

Finding the Fourth Proportional to 920,706,877.80, 1,381,060,316.70 and 553,374,858.60

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Solution

The fourth proportional to 920,706,877.80, 1,381,060,316.70 and 553,374,858.60 is: 830,062,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,706,877.80 : 1,381,060,316.70 = 553,374,858.60 : x
  2. Step 2: Convert to fraction form
    920,706,877.80/1,381,060,316.70 = 553,374,858.60/x
  3. Step 3: Cross multiply
    920,706,877.80x = 1,381,060,316.70 × 553,374,858.60
  4. Step 4: Simplify right side
    920,706,877.80x = 764,244,057,471,933,824
  5. Step 5: Solve for x
    x = 764,244,057,471,933,824/920,706,877.80
  6. Step 6: Final answer
    x = 830,062,287.90

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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.