Home / 15,306,759,037.21-21,123,327,299.76-8,266,228,669.21

Finding the Fourth Proportional to 15,306,759,037.21, 21,123,327,299.76 and 8,266,228,669.21

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Solution

The fourth proportional to 15,306,759,037.21, 21,123,327,299.76 and 8,266,228,669.21 is: 11,407,395,470.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306,759,037.21 : 21,123,327,299.76 = 8,266,228,669.21 : x
  2. Step 2: Convert to fraction form
    15,306,759,037.21/21,123,327,299.76 = 8,266,228,669.21/x
  3. Step 3: Cross multiply
    15,306,759,037.21x = 21,123,327,299.76 × 8,266,228,669.21
  4. Step 4: Simplify right side
    15,306,759,037.21x = 174,610,253,714,382,356,480
  5. Step 5: Solve for x
    x = 174,610,253,714,382,356,480/15,306,759,037.21
  6. Step 6: Final answer
    x = 11,407,395,470.84

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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.