Home / 638,440,031.60-957,660,047.40-347,194,617.20

Finding the Fourth Proportional to 638,440,031.60, 957,660,047.40 and 347,194,617.20

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Solution

The fourth proportional to 638,440,031.60, 957,660,047.40 and 347,194,617.20 is: 520,791,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,440,031.60 : 957,660,047.40 = 347,194,617.20 : x
  2. Step 2: Convert to fraction form
    638,440,031.60/957,660,047.40 = 347,194,617.20/x
  3. Step 3: Cross multiply
    638,440,031.60x = 957,660,047.40 × 347,194,617.20
  4. Step 4: Simplify right side
    638,440,031.60x = 332,494,413,564,776,832
  5. Step 5: Solve for x
    x = 332,494,413,564,776,832/638,440,031.60
  6. Step 6: Final answer
    x = 520,791,925.80

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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.