Home / 689,697,072.60-1,034,829,044.10-253,206,864.60

Finding the Fourth Proportional to 689,697,072.60, 1,034,829,044.10 and 253,206,864.60

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Solution

The fourth proportional to 689,697,072.60, 1,034,829,044.10 and 253,206,864.60 is: 379,914,353.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,697,072.60 : 1,034,829,044.10 = 253,206,864.60 : x
  2. Step 2: Convert to fraction form
    689,697,072.60/1,034,829,044.10 = 253,206,864.60/x
  3. Step 3: Cross multiply
    689,697,072.60x = 1,034,829,044.10 × 253,206,864.60
  4. Step 4: Simplify right side
    689,697,072.60x = 262,025,817,653,576,128
  5. Step 5: Solve for x
    x = 262,025,817,653,576,128/689,697,072.60
  6. Step 6: Final answer
    x = 379,914,353.80

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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.