Home / 85,440,348.30-128,160,522.45-27,938,432.10

Finding the Fourth Proportional to 85,440,348.30, 128,160,522.45 and 27,938,432.10

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Solution

The fourth proportional to 85,440,348.30, 128,160,522.45 and 27,938,432.10 is: 41,907,648.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,440,348.30 : 128,160,522.45 = 27,938,432.10 : x
  2. Step 2: Convert to fraction form
    85,440,348.30/128,160,522.45 = 27,938,432.10/x
  3. Step 3: Cross multiply
    85,440,348.30x = 128,160,522.45 × 27,938,432.10
  4. Step 4: Simplify right side
    85,440,348.30x = 3,580,604,054,369,851
  5. Step 5: Solve for x
    x = 3,580,604,054,369,851/85,440,348.30
  6. Step 6: Final answer
    x = 41,907,648.15

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1.5x scale

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.