Home / 19,078,521.90-28,575,792.45-11,492,256.30

Finding the Fourth Proportional to 19,078,521.90, 28,575,792.45 and 11,492,256.30

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Solution

The fourth proportional to 19,078,521.90, 28,575,792.45 and 11,492,256.30 is: 17,213,090.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078,521.90 : 28,575,792.45 = 11,492,256.30 : x
  2. Step 2: Convert to fraction form
    19,078,521.90/28,575,792.45 = 11,492,256.30/x
  3. Step 3: Cross multiply
    19,078,521.90x = 28,575,792.45 × 11,492,256.30
  4. Step 4: Simplify right side
    19,078,521.90x = 328,400,330,811,004.94
  5. Step 5: Solve for x
    x = 328,400,330,811,004.94/19,078,521.90
  6. Step 6: Final answer
    x = 17,213,090.85

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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.