Home / 146,709,842.10-220,064,763.15-78,685,394.10

Finding the Fourth Proportional to 146,709,842.10, 220,064,763.15 and 78,685,394.10

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Solution

The fourth proportional to 146,709,842.10, 220,064,763.15 and 78,685,394.10 is: 118,028,091.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,709,842.10 : 220,064,763.15 = 78,685,394.10 : x
  2. Step 2: Convert to fraction form
    146,709,842.10/220,064,763.15 = 78,685,394.10/x
  3. Step 3: Cross multiply
    146,709,842.10x = 220,064,763.15 × 78,685,394.10
  4. Step 4: Simplify right side
    146,709,842.10x = 17,315,882,615,980,906
  5. Step 5: Solve for x
    x = 17,315,882,615,980,906/146,709,842.10
  6. Step 6: Final answer
    x = 118,028,091.15

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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.