Home / 387,901,662.34-581,838,321.54-115,265,343.46

Finding the Fourth Proportional to 387,901,662.34, 581,838,321.54 and 115,265,343.46

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Solution

The fourth proportional to 387,901,662.34, 581,838,321.54 and 115,265,343.46 is: 172,893,803.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,901,662.34 : 581,838,321.54 = 115,265,343.46 : x
  2. Step 2: Convert to fraction form
    387,901,662.34/581,838,321.54 = 115,265,343.46/x
  3. Step 3: Cross multiply
    387,901,662.34x = 581,838,321.54 × 115,265,343.46
  4. Step 4: Simplify right side
    387,901,662.34x = 67,065,793,970,498,008
  5. Step 5: Solve for x
    x = 67,065,793,970,498,008/387,901,662.34
  6. Step 6: Final answer
    x = 172,893,803.98

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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.