Home / 12,960,031.80-19,440,047.70-3,983,417.40

Finding the Fourth Proportional to 12,960,031.80, 19,440,047.70 and 3,983,417.40

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Solution

The fourth proportional to 12,960,031.80, 19,440,047.70 and 3,983,417.40 is: 5,975,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,031.80 : 19,440,047.70 = 3,983,417.40 : x
  2. Step 2: Convert to fraction form
    12,960,031.80/19,440,047.70 = 3,983,417.40/x
  3. Step 3: Cross multiply
    12,960,031.80x = 19,440,047.70 × 3,983,417.40
  4. Step 4: Simplify right side
    12,960,031.80x = 77,437,824,265,009.97
  5. Step 5: Solve for x
    x = 77,437,824,265,009.97/12,960,031.80
  6. Step 6: Final answer
    x = 5,975,126.10

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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.