Home / 989,843,425.20-1,485,615,443.40-437,995,090.80

Finding the Fourth Proportional to 989,843,425.20, 1,485,615,443.40 and 437,995,090.80

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Solution

The fourth proportional to 989,843,425.20, 1,485,615,443.40 and 437,995,090.80 is: 657,368,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,843,425.20 : 1,485,615,443.40 = 437,995,090.80 : x
  2. Step 2: Convert to fraction form
    989,843,425.20/1,485,615,443.40 = 437,995,090.80/x
  3. Step 3: Cross multiply
    989,843,425.20x = 1,485,615,443.40 × 437,995,090.80
  4. Step 4: Simplify right side
    989,843,425.20x = 650,692,271,025,865,344
  5. Step 5: Solve for x
    x = 650,692,271,025,865,344/989,843,425.20
  6. Step 6: Final answer
    x = 657,368,887.30

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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.