Home / 287,176,980.30-430,774,233.06-112,293,029.58

Finding the Fourth Proportional to 287,176,980.30, 430,774,233.06 and 112,293,029.58

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Solution

The fourth proportional to 287,176,980.30, 430,774,233.06 and 112,293,029.58 is: 168,442,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,176,980.30 : 430,774,233.06 = 112,293,029.58 : x
  2. Step 2: Convert to fraction form
    287,176,980.30/430,774,233.06 = 112,293,029.58/x
  3. Step 3: Cross multiply
    287,176,980.30x = 430,774,233.06 × 112,293,029.58
  4. Step 4: Simplify right side
    287,176,980.30x = 48,372,943,695,308,392
  5. Step 5: Solve for x
    x = 48,372,943,695,308,392/287,176,980.30
  6. Step 6: Final answer
    x = 168,442,970.76

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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.