Home / 387,901,659.83-581,838,317.81-115,265,340.95

Finding the Fourth Proportional to 387,901,659.83, 581,838,317.81 and 115,265,340.95

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Solution

The fourth proportional to 387,901,659.83, 581,838,317.81 and 115,265,340.95 is: 172,893,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,901,659.83 : 581,838,317.81 = 115,265,340.95 : x
  2. Step 2: Convert to fraction form
    387,901,659.83/581,838,317.81 = 115,265,340.95/x
  3. Step 3: Cross multiply
    387,901,659.83x = 581,838,317.81 × 115,265,340.95
  4. Step 4: Simplify right side
    387,901,659.83x = 67,065,792,079,567,776
  5. Step 5: Solve for x
    x = 67,065,792,079,567,776/387,901,659.83
  6. Step 6: Final answer
    x = 172,893,800.22

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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.