Home / 917,409,869.22-1,376,194,072.08-253,423,656.54

Finding the Fourth Proportional to 917,409,869.22, 1,376,194,072.08 and 253,423,656.54

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Solution

The fourth proportional to 917,409,869.22, 1,376,194,072.08 and 253,423,656.54 is: 380,157,381.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,409,869.22 : 1,376,194,072.08 = 253,423,656.54 : x
  2. Step 2: Convert to fraction form
    917,409,869.22/1,376,194,072.08 = 253,423,656.54/x
  3. Step 3: Cross multiply
    917,409,869.22x = 1,376,194,072.08 × 253,423,656.54
  4. Step 4: Simplify right side
    917,409,869.22x = 348,760,133,855,185,920
  5. Step 5: Solve for x
    x = 348,760,133,855,185,920/917,409,869.22
  6. Step 6: Final answer
    x = 380,157,381.73

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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.