Home / 387,901,499.08-581,838,076.84-115,265,180.20

Finding the Fourth Proportional to 387,901,499.08, 581,838,076.84 and 115,265,180.20

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Solution

The fourth proportional to 387,901,499.08, 581,838,076.84 and 115,265,180.20 is: 172,893,559.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,901,499.08 : 581,838,076.84 = 115,265,180.20 : x
  2. Step 2: Convert to fraction form
    387,901,499.08/581,838,076.84 = 115,265,180.20/x
  3. Step 3: Cross multiply
    387,901,499.08x = 581,838,076.84 × 115,265,180.20
  4. Step 4: Simplify right side
    387,901,499.08x = 67,065,670,774,184,056
  5. Step 5: Solve for x
    x = 67,065,670,774,184,056/387,901,499.08
  6. Step 6: Final answer
    x = 172,893,559.15

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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.