Home / 168,931,016.09-253,492,381.70-91,206,885.05

Finding the Fourth Proportional to 168,931,016.09, 253,492,381.70 and 91,206,885.05

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Solution

The fourth proportional to 168,931,016.09, 253,492,381.70 and 91,206,885.05 is: 136,862,081.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,931,016.09 : 253,492,381.70 = 91,206,885.05 : x
  2. Step 2: Convert to fraction form
    168,931,016.09/253,492,381.70 = 91,206,885.05/x
  3. Step 3: Cross multiply
    168,931,016.09x = 253,492,381.70 × 91,206,885.05
  4. Step 4: Simplify right side
    168,931,016.09x = 23,120,250,518,306,588
  5. Step 5: Solve for x
    x = 23,120,250,518,306,588/168,931,016.09
  6. Step 6: Final answer
    x = 136,862,081.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.