Home / 403,392,425.40-605,088,638.10-368,955,048.60

Finding the Fourth Proportional to 403,392,425.40, 605,088,638.10 and 368,955,048.60

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Solution

The fourth proportional to 403,392,425.40, 605,088,638.10 and 368,955,048.60 is: 553,432,572.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,392,425.40 : 605,088,638.10 = 368,955,048.60 : x
  2. Step 2: Convert to fraction form
    403,392,425.40/605,088,638.10 = 368,955,048.60/x
  3. Step 3: Cross multiply
    403,392,425.40x = 605,088,638.10 × 368,955,048.60
  4. Step 4: Simplify right side
    403,392,425.40x = 223,250,507,877,493,344
  5. Step 5: Solve for x
    x = 223,250,507,877,493,344/403,392,425.40
  6. Step 6: Final answer
    x = 553,432,572.90

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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.