Home / 12,960,066.90-19,440,100.35-12,680,130.90

Finding the Fourth Proportional to 12,960,066.90, 19,440,100.35 and 12,680,130.90

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Solution

The fourth proportional to 12,960,066.90, 19,440,100.35 and 12,680,130.90 is: 19,020,196.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,066.90 : 19,440,100.35 = 12,680,130.90 : x
  2. Step 2: Convert to fraction form
    12,960,066.90/19,440,100.35 = 12,680,130.90/x
  3. Step 3: Cross multiply
    12,960,066.90x = 19,440,100.35 × 12,680,130.90
  4. Step 4: Simplify right side
    12,960,066.90x = 246,503,017,147,135.84
  5. Step 5: Solve for x
    x = 246,503,017,147,135.84/12,960,066.90
  6. Step 6: Final answer
    x = 19,020,196.35

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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.