Home / 903,645,219.60-1,355,467,829.40-628,146,205.20

Finding the Fourth Proportional to 903,645,219.60, 1,355,467,829.40 and 628,146,205.20

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Solution

The fourth proportional to 903,645,219.60, 1,355,467,829.40 and 628,146,205.20 is: 942,219,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,645,219.60 : 1,355,467,829.40 = 628,146,205.20 : x
  2. Step 2: Convert to fraction form
    903,645,219.60/1,355,467,829.40 = 628,146,205.20/x
  3. Step 3: Cross multiply
    903,645,219.60x = 1,355,467,829.40 × 628,146,205.20
  4. Step 4: Simplify right side
    903,645,219.60x = 851,431,973,308,291,072
  5. Step 5: Solve for x
    x = 851,431,973,308,291,072/903,645,219.60
  6. Step 6: Final answer
    x = 942,219,307.80

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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.