Home / 864,881,212.32-1,297,488,730.68-282,458,880.72

Finding the Fourth Proportional to 864,881,212.32, 1,297,488,730.68 and 282,458,880.72

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Solution

The fourth proportional to 864,881,212.32, 1,297,488,730.68 and 282,458,880.72 is: 423,742,832.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,881,212.32 : 1,297,488,730.68 = 282,458,880.72 : x
  2. Step 2: Convert to fraction form
    864,881,212.32/1,297,488,730.68 = 282,458,880.72/x
  3. Step 3: Cross multiply
    864,881,212.32x = 1,297,488,730.68 × 282,458,880.72
  4. Step 4: Simplify right side
    864,881,212.32x = 366,487,214,614,686,400
  5. Step 5: Solve for x
    x = 366,487,214,614,686,400/864,881,212.32
  6. Step 6: Final answer
    x = 423,742,832.42

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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.