Home / 517,666,785.11-714,397,790.45-306,154,927.87

Finding the Fourth Proportional to 517,666,785.11, 714,397,790.45 and 306,154,927.87

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Solution

The fourth proportional to 517,666,785.11, 714,397,790.45 and 306,154,927.87 is: 422,504,225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,666,785.11 : 714,397,790.45 = 306,154,927.87 : x
  2. Step 2: Convert to fraction form
    517,666,785.11/714,397,790.45 = 306,154,927.87/x
  3. Step 3: Cross multiply
    517,666,785.11x = 714,397,790.45 × 306,154,927.87
  4. Step 4: Simplify right side
    517,666,785.11x = 218,716,404,002,537,312
  5. Step 5: Solve for x
    x = 218,716,404,002,537,312/517,666,785.11
  6. Step 6: Final answer
    x = 422,504,225.29

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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.