Home / 20,364,349,448.55-28,105,248,729.87-12,335,454,410.79

Finding the Fourth Proportional to 20,364,349,448.55, 28,105,248,729.87 and 12,335,454,410.79

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Solution

The fourth proportional to 20,364,349,448.55, 28,105,248,729.87 and 12,335,454,410.79 is: 17,024,409,018.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,364,349,448.55 : 28,105,248,729.87 = 12,335,454,410.79 : x
  2. Step 2: Convert to fraction form
    20,364,349,448.55/28,105,248,729.87 = 12,335,454,410.79/x
  3. Step 3: Cross multiply
    20,364,349,448.55x = 28,105,248,729.87 × 12,335,454,410.79
  4. Step 4: Simplify right side
    20,364,349,448.55x = 346,691,014,411,224,940,544
  5. Step 5: Solve for x
    x = 346,691,014,411,224,940,544/20,364,349,448.55
  6. Step 6: Final answer
    x = 17,024,409,018.67

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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.