Home / 287,095,072.80-430,621,715.88-112,185,344.64

Finding the Fourth Proportional to 287,095,072.80, 430,621,715.88 and 112,185,344.64

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Solution

The fourth proportional to 287,095,072.80, 430,621,715.88 and 112,185,344.64 is: 168,269,852.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,095,072.80 : 430,621,715.88 = 112,185,344.64 : x
  2. Step 2: Convert to fraction form
    287,095,072.80/430,621,715.88 = 112,185,344.64/x
  3. Step 3: Cross multiply
    287,095,072.80x = 430,621,715.88 × 112,185,344.64
  4. Step 4: Simplify right side
    287,095,072.80x = 48,309,445,605,465,960
  5. Step 5: Solve for x
    x = 48,309,445,605,465,960/287,095,072.80
  6. Step 6: Final answer
    x = 168,269,852.68

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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.