Home / 291,457,311.40-437,234,955.90-87,006,053.80

Finding the Fourth Proportional to 291,457,311.40, 437,234,955.90 and 87,006,053.80

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Solution

The fourth proportional to 291,457,311.40, 437,234,955.90 and 87,006,053.80 is: 130,523,704.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,457,311.40 : 437,234,955.90 = 87,006,053.80 : x
  2. Step 2: Convert to fraction form
    291,457,311.40/437,234,955.90 = 87,006,053.80/x
  3. Step 3: Cross multiply
    291,457,311.40x = 437,234,955.90 × 87,006,053.80
  4. Step 4: Simplify right side
    291,457,311.40x = 38,042,088,096,276,024
  5. Step 5: Solve for x
    x = 38,042,088,096,276,024/291,457,311.40
  6. Step 6: Final answer
    x = 130,523,704.87

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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.