Home / 1,443,531,874.80-1,991,732,564.64-817,000,302.72

Finding the Fourth Proportional to 1,443,531,874.80, 1,991,732,564.64 and 817,000,302.72

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Solution

The fourth proportional to 1,443,531,874.80, 1,991,732,564.64 and 817,000,302.72 is: 1,127,267,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,531,874.80 : 1,991,732,564.64 = 817,000,302.72 : x
  2. Step 2: Convert to fraction form
    1,443,531,874.80/1,991,732,564.64 = 817,000,302.72/x
  3. Step 3: Cross multiply
    1,443,531,874.80x = 1,991,732,564.64 × 817,000,302.72
  4. Step 4: Simplify right side
    1,443,531,874.80x = 1,627,246,108,248,162,048
  5. Step 5: Solve for x
    x = 1,627,246,108,248,162,048/1,443,531,874.80
  6. Step 6: Final answer
    x = 1,127,267,181.73

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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.