Home / 314,929,367.80-472,394,051.70-84,890,210.20

Finding the Fourth Proportional to 314,929,367.80, 472,394,051.70 and 84,890,210.20

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Solution

The fourth proportional to 314,929,367.80, 472,394,051.70 and 84,890,210.20 is: 127,335,315.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,929,367.80 : 472,394,051.70 = 84,890,210.20 : x
  2. Step 2: Convert to fraction form
    314,929,367.80/472,394,051.70 = 84,890,210.20/x
  3. Step 3: Cross multiply
    314,929,367.80x = 472,394,051.70 × 84,890,210.20
  4. Step 4: Simplify right side
    314,929,367.80x = 40,101,630,346,042,664
  5. Step 5: Solve for x
    x = 40,101,630,346,042,664/314,929,367.80
  6. Step 6: Final answer
    x = 127,335,315.30

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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.