Home / 19,987,675,429.80-27,585,952,526.60-12,655,709,672.44

Finding the Fourth Proportional to 19,987,675,429.80, 27,585,952,526.60 and 12,655,709,672.44

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Solution

The fourth proportional to 19,987,675,429.80, 27,585,952,526.60 and 12,655,709,672.44 is: 17,466,753,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987,675,429.80 : 27,585,952,526.60 = 12,655,709,672.44 : x
  2. Step 2: Convert to fraction form
    19,987,675,429.80/27,585,952,526.60 = 12,655,709,672.44/x
  3. Step 3: Cross multiply
    19,987,675,429.80x = 27,585,952,526.60 × 12,655,709,672.44
  4. Step 4: Simplify right side
    19,987,675,429.80x = 349,119,806,214,362,300,416
  5. Step 5: Solve for x
    x = 349,119,806,214,362,300,416/19,987,675,429.80
  6. Step 6: Final answer
    x = 17,466,753,822.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.