Home / 287,176,068.37-430,889,398.19-100,563,948.89

Finding the Fourth Proportional to 287,176,068.37, 430,889,398.19 and 100,563,948.89

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Solution

The fourth proportional to 287,176,068.37, 430,889,398.19 and 100,563,948.89 is: 150,889,799.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,176,068.37 : 430,889,398.19 = 100,563,948.89 : x
  2. Step 2: Convert to fraction form
    287,176,068.37/430,889,398.19 = 100,563,948.89/x
  3. Step 3: Cross multiply
    287,176,068.37x = 430,889,398.19 × 100,563,948.89
  4. Step 4: Simplify right side
    287,176,068.37x = 43,331,939,416,822,016
  5. Step 5: Solve for x
    x = 43,331,939,416,822,016/287,176,068.37
  6. Step 6: Final answer
    x = 150,889,799.64

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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.