Home / 278,046,009.60-417,069,014.40-265,291,425.60

Finding the Fourth Proportional to 278,046,009.60, 417,069,014.40 and 265,291,425.60

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Solution

The fourth proportional to 278,046,009.60, 417,069,014.40 and 265,291,425.60 is: 397,937,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,046,009.60 : 417,069,014.40 = 265,291,425.60 : x
  2. Step 2: Convert to fraction form
    278,046,009.60/417,069,014.40 = 265,291,425.60/x
  3. Step 3: Cross multiply
    278,046,009.60x = 417,069,014.40 × 265,291,425.60
  4. Step 4: Simplify right side
    278,046,009.60x = 110,644,833,403,762,912
  5. Step 5: Solve for x
    x = 110,644,833,403,762,912/278,046,009.60
  6. Step 6: Final answer
    x = 397,937,138.40

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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.