Home / 353,423,638.10-487,728,008.93-194,657,360.46

Finding the Fourth Proportional to 353,423,638.10, 487,728,008.93 and 194,657,360.46

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Solution

The fourth proportional to 353,423,638.10, 487,728,008.93 and 194,657,360.46 is: 268,629,023.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,423,638.10 : 487,728,008.93 = 194,657,360.46 : x
  2. Step 2: Convert to fraction form
    353,423,638.10/487,728,008.93 = 194,657,360.46/x
  3. Step 3: Cross multiply
    353,423,638.10x = 487,728,008.93 × 194,657,360.46
  4. Step 4: Simplify right side
    353,423,638.10x = 94,939,846,841,211,760
  5. Step 5: Solve for x
    x = 94,939,846,841,211,760/353,423,638.10
  6. Step 6: Final answer
    x = 268,629,023.66

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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.