Home / 278,399,349.40-417,599,024.10-249,342,812.73

Finding the Fourth Proportional to 278,399,349.40, 417,599,024.10 and 249,342,812.73

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Solution

The fourth proportional to 278,399,349.40, 417,599,024.10 and 249,342,812.73 is: 374,014,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,399,349.40 : 417,599,024.10 = 249,342,812.73 : x
  2. Step 2: Convert to fraction form
    278,399,349.40/417,599,024.10 = 249,342,812.73/x
  3. Step 3: Cross multiply
    278,399,349.40x = 417,599,024.10 × 249,342,812.73
  4. Step 4: Simplify right side
    278,399,349.40x = 104,125,315,262,397,056
  5. Step 5: Solve for x
    x = 104,125,315,262,397,056/278,399,349.40
  6. Step 6: Final answer
    x = 374,014,219.10

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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.