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Finding the Fourth Proportional to 880,097,978.90, 1,320,146,968.35 and 738,043,799.60

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Solution

The fourth proportional to 880,097,978.90, 1,320,146,968.35 and 738,043,799.60 is: 1,107,065,699.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,097,978.90 : 1,320,146,968.35 = 738,043,799.60 : x
  2. Step 2: Convert to fraction form
    880,097,978.90/1,320,146,968.35 = 738,043,799.60/x
  3. Step 3: Cross multiply
    880,097,978.90x = 1,320,146,968.35 × 738,043,799.60
  4. Step 4: Simplify right side
    880,097,978.90x = 974,326,284,551,454,848
  5. Step 5: Solve for x
    x = 974,326,284,551,454,848/880,097,978.90
  6. Step 6: Final answer
    x = 1,107,065,699.40

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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.