Home / 415,136,768.20-622,705,152.30-262,459,673.80

Finding the Fourth Proportional to 415,136,768.20, 622,705,152.30 and 262,459,673.80

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Solution

The fourth proportional to 415,136,768.20, 622,705,152.30 and 262,459,673.80 is: 393,689,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,136,768.20 : 622,705,152.30 = 262,459,673.80 : x
  2. Step 2: Convert to fraction form
    415,136,768.20/622,705,152.30 = 262,459,673.80/x
  3. Step 3: Cross multiply
    415,136,768.20x = 622,705,152.30 × 262,459,673.80
  4. Step 4: Simplify right side
    415,136,768.20x = 163,434,991,146,237,312
  5. Step 5: Solve for x
    x = 163,434,991,146,237,312/415,136,768.20
  6. Step 6: Final answer
    x = 393,689,510.70

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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.