Home / 1,200,441,165.12-1,800,628,155.36-382,602,542.40

Finding the Fourth Proportional to 1,200,441,165.12, 1,800,628,155.36 and 382,602,542.40

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Solution

The fourth proportional to 1,200,441,165.12, 1,800,628,155.36 and 382,602,542.40 is: 573,893,107.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,441,165.12 : 1,800,628,155.36 = 382,602,542.40 : x
  2. Step 2: Convert to fraction form
    1,200,441,165.12/1,800,628,155.36 = 382,602,542.40/x
  3. Step 3: Cross multiply
    1,200,441,165.12x = 1,800,628,155.36 × 382,602,542.40
  4. Step 4: Simplify right side
    1,200,441,165.12x = 688,924,910,157,758,080
  5. Step 5: Solve for x
    x = 688,924,910,157,758,080/1,200,441,165.12
  6. Step 6: Final answer
    x = 573,893,107.11

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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.