Home / 21,630,778-29,853,752.36-12,338,302.48

Finding the Fourth Proportional to 21,630,778, 29,853,752.36 and 12,338,302.48

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Solution

The fourth proportional to 21,630,778, 29,853,752.36 and 12,338,302.48 is: 17,028,727.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630,778 : 29,853,752.36 = 12,338,302.48 : x
  2. Step 2: Convert to fraction form
    21,630,778/29,853,752.36 = 12,338,302.48/x
  3. Step 3: Cross multiply
    21,630,778x = 29,853,752.36 × 12,338,302.48
  4. Step 4: Simplify right side
    21,630,778x = 368,344,626,780,693.88
  5. Step 5: Solve for x
    x = 368,344,626,780,693.88/21,630,778
  6. Step 6: Final answer
    x = 17,028,727.62

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1.5x scale

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.