Home / 156,283,296-215,670,950.40-87,605,664

Finding the Fourth Proportional to 156,283,296, 215,670,950.40 and 87,605,664

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Solution

The fourth proportional to 156,283,296, 215,670,950.40 and 87,605,664 is: 120,895,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,283,296 : 215,670,950.40 = 87,605,664 : x
  2. Step 2: Convert to fraction form
    156,283,296/215,670,950.40 = 87,605,664/x
  3. Step 3: Cross multiply
    156,283,296x = 215,670,950.40 × 87,605,664
  4. Step 4: Simplify right side
    156,283,296x = 18,893,996,815,303,068
  5. Step 5: Solve for x
    x = 18,893,996,815,303,068/156,283,296
  6. Step 6: Final answer
    x = 120,895,817.40

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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.