Home / 306,487,017.84-422,951,973.40-167,257,779.61

Finding the Fourth Proportional to 306,487,017.84, 422,951,973.40 and 167,257,779.61

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Solution

The fourth proportional to 306,487,017.84, 422,951,973.40 and 167,257,779.61 is: 230,815,675.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,487,017.84 : 422,951,973.40 = 167,257,779.61 : x
  2. Step 2: Convert to fraction form
    306,487,017.84/422,951,973.40 = 167,257,779.61/x
  3. Step 3: Cross multiply
    306,487,017.84x = 422,951,973.40 × 167,257,779.61
  4. Step 4: Simplify right side
    306,487,017.84x = 70,742,007,952,498,632
  5. Step 5: Solve for x
    x = 70,742,007,952,498,632/306,487,017.84
  6. Step 6: Final answer
    x = 230,815,675.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.