Home / 353,423,638.35-487,728,009.28-194,657,360.71

Finding the Fourth Proportional to 353,423,638.35, 487,728,009.28 and 194,657,360.71

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Solution

The fourth proportional to 353,423,638.35, 487,728,009.28 and 194,657,360.71 is: 268,629,024.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,423,638.35 : 487,728,009.28 = 194,657,360.71 : x
  2. Step 2: Convert to fraction form
    353,423,638.35/487,728,009.28 = 194,657,360.71/x
  3. Step 3: Cross multiply
    353,423,638.35x = 487,728,009.28 × 194,657,360.71
  4. Step 4: Simplify right side
    353,423,638.35x = 94,939,847,030,787,184
  5. Step 5: Solve for x
    x = 94,939,847,030,787,184/353,423,638.35
  6. Step 6: Final answer
    x = 268,629,024.01

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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.