Home / 278,828,415.60-418,242,623.40-248,695,710.90

Finding the Fourth Proportional to 278,828,415.60, 418,242,623.40 and 248,695,710.90

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Solution

The fourth proportional to 278,828,415.60, 418,242,623.40 and 248,695,710.90 is: 373,043,566.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,828,415.60 : 418,242,623.40 = 248,695,710.90 : x
  2. Step 2: Convert to fraction form
    278,828,415.60/418,242,623.40 = 248,695,710.90/x
  3. Step 3: Cross multiply
    278,828,415.60x = 418,242,623.40 × 248,695,710.90
  4. Step 4: Simplify right side
    278,828,415.60x = 104,015,146,555,143,968
  5. Step 5: Solve for x
    x = 104,015,146,555,143,968/278,828,415.60
  6. Step 6: Final answer
    x = 373,043,566.35

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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.