Home / 387,901,664.34-581,838,324.54-115,265,345.46

Finding the Fourth Proportional to 387,901,664.34, 581,838,324.54 and 115,265,345.46

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Solution

The fourth proportional to 387,901,664.34, 581,838,324.54 and 115,265,345.46 is: 172,893,806.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,901,664.34 : 581,838,324.54 = 115,265,345.46 : x
  2. Step 2: Convert to fraction form
    387,901,664.34/581,838,324.54 = 115,265,345.46/x
  3. Step 3: Cross multiply
    387,901,664.34x = 581,838,324.54 × 115,265,345.46
  4. Step 4: Simplify right side
    387,901,664.34x = 67,065,795,479,970,688
  5. Step 5: Solve for x
    x = 67,065,795,479,970,688/387,901,664.34
  6. Step 6: Final answer
    x = 172,893,806.98

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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.