Home / 12,960,021.80-19,440,032.70-3,983,407.40

Finding the Fourth Proportional to 12,960,021.80, 19,440,032.70 and 3,983,407.40

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Solution

The fourth proportional to 12,960,021.80, 19,440,032.70 and 3,983,407.40 is: 5,975,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,021.80 : 19,440,032.70 = 3,983,407.40 : x
  2. Step 2: Convert to fraction form
    12,960,021.80/19,440,032.70 = 3,983,407.40/x
  3. Step 3: Cross multiply
    12,960,021.80x = 19,440,032.70 × 3,983,407.40
  4. Step 4: Simplify right side
    12,960,021.80x = 77,437,570,113,421.97
  5. Step 5: Solve for x
    x = 77,437,570,113,421.97/12,960,021.80
  6. Step 6: Final answer
    x = 5,975,111.10

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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.