Home / 12,960,015.40-19,440,023.10-12,680,079.40

Finding the Fourth Proportional to 12,960,015.40, 19,440,023.10 and 12,680,079.40

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Solution

The fourth proportional to 12,960,015.40, 19,440,023.10 and 12,680,079.40 is: 19,020,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,015.40 : 19,440,023.10 = 12,680,079.40 : x
  2. Step 2: Convert to fraction form
    12,960,015.40/19,440,023.10 = 12,680,079.40/x
  3. Step 3: Cross multiply
    12,960,015.40x = 19,440,023.10 × 12,680,079.40
  4. Step 4: Simplify right side
    12,960,015.40x = 246,501,036,445,834.16
  5. Step 5: Solve for x
    x = 246,501,036,445,834.16/12,960,015.40
  6. Step 6: Final answer
    x = 19,020,119.10

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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.