Home / 1,228,415,928.40-1,842,623,892.60-399,367,968.40

Finding the Fourth Proportional to 1,228,415,928.40, 1,842,623,892.60 and 399,367,968.40

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Solution

The fourth proportional to 1,228,415,928.40, 1,842,623,892.60 and 399,367,968.40 is: 599,051,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,415,928.40 : 1,842,623,892.60 = 399,367,968.40 : x
  2. Step 2: Convert to fraction form
    1,228,415,928.40/1,842,623,892.60 = 399,367,968.40/x
  3. Step 3: Cross multiply
    1,228,415,928.40x = 1,842,623,892.60 × 399,367,968.40
  4. Step 4: Simplify right side
    1,228,415,928.40x = 735,884,960,512,961,664
  5. Step 5: Solve for x
    x = 735,884,960,512,961,664/1,228,415,928.40
  6. Step 6: Final answer
    x = 599,051,952.60

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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.