Home / 20,409,011,366.56-28,164,435,451.88-11,021,637,542.56

Finding the Fourth Proportional to 20,409,011,366.56, 28,164,435,451.88 and 11,021,637,542.56

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Solution

The fourth proportional to 20,409,011,366.56, 28,164,435,451.88 and 11,021,637,542.56 is: 15,209,859,682.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409,011,366.56 : 28,164,435,451.88 = 11,021,637,542.56 : x
  2. Step 2: Convert to fraction form
    20,409,011,366.56/28,164,435,451.88 = 11,021,637,542.56/x
  3. Step 3: Cross multiply
    20,409,011,366.56x = 28,164,435,451.88 × 11,021,637,542.56
  4. Step 4: Simplify right side
    20,409,011,366.56x = 310,418,199,141,448,417,280
  5. Step 5: Solve for x
    x = 310,418,199,141,448,417,280/20,409,011,366.56
  6. Step 6: Final answer
    x = 15,209,859,682.38

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1.5x scale

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.