Home / 378,046,172.40-567,069,258.60-287,346,908.40

Finding the Fourth Proportional to 378,046,172.40, 567,069,258.60 and 287,346,908.40

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Solution

The fourth proportional to 378,046,172.40, 567,069,258.60 and 287,346,908.40 is: 431,020,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,046,172.40 : 567,069,258.60 = 287,346,908.40 : x
  2. Step 2: Convert to fraction form
    378,046,172.40/567,069,258.60 = 287,346,908.40/x
  3. Step 3: Cross multiply
    378,046,172.40x = 567,069,258.60 × 287,346,908.40
  4. Step 4: Simplify right side
    378,046,172.40x = 162,945,598,307,390,112
  5. Step 5: Solve for x
    x = 162,945,598,307,390,112/378,046,172.40
  6. Step 6: Final answer
    x = 431,020,362.60

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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.