Home / 149,105,463,335.91-205,766,167,808.43-84,000,671,809.47

Finding the Fourth Proportional to 149,105,463,335.91, 205,766,167,808.43 and 84,000,671,809.47

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Solution

The fourth proportional to 149,105,463,335.91, 205,766,167,808.43 and 84,000,671,809.47 is: 115,921,281,117.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,105,463,335.91 : 205,766,167,808.43 = 84,000,671,809.47 : x
  2. Step 2: Convert to fraction form
    149,105,463,335.91/205,766,167,808.43 = 84,000,671,809.47/x
  3. Step 3: Cross multiply
    149,105,463,335.91x = 205,766,167,808.43 × 84,000,671,809.47
  4. Step 4: Simplify right side
    149,105,463,335.91x = 17,284,496,331,568,259,792,896
  5. Step 5: Solve for x
    x = 17,284,496,331,568,259,792,896/149,105,463,335.91
  6. Step 6: Final answer
    x = 115,921,281,117.84

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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.