Home / 19,931,288,421.14-27,492,217,921.95-12,783,380,399

Finding the Fourth Proportional to 19,931,288,421.14, 27,492,217,921.95 and 12,783,380,399

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Solution

The fourth proportional to 19,931,288,421.14, 27,492,217,921.95 and 12,783,380,399 is: 17,632,752,699.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931,288,421.14 : 27,492,217,921.95 = 12,783,380,399 : x
  2. Step 2: Convert to fraction form
    19,931,288,421.14/27,492,217,921.95 = 12,783,380,399/x
  3. Step 3: Cross multiply
    19,931,288,421.14x = 27,492,217,921.95 × 12,783,380,399
  4. Step 4: Simplify right side
    19,931,288,421.14x = 351,443,479,708,492,169,216
  5. Step 5: Solve for x
    x = 351,443,479,708,492,169,216/19,931,288,421.14
  6. Step 6: Final answer
    x = 17,632,752,699.31

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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.