Home / 1,095,885,720.69-1,644,102,666.86-319,531,381.40

Finding the Fourth Proportional to 1,095,885,720.69, 1,644,102,666.86 and 319,531,381.40

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Solution

The fourth proportional to 1,095,885,720.69, 1,644,102,666.86 and 319,531,381.40 is: 479,376,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,885,720.69 : 1,644,102,666.86 = 319,531,381.40 : x
  2. Step 2: Convert to fraction form
    1,095,885,720.69/1,644,102,666.86 = 319,531,381.40/x
  3. Step 3: Cross multiply
    1,095,885,720.69x = 1,644,102,666.86 × 319,531,381.40
  4. Step 4: Simplify right side
    1,095,885,720.69x = 525,342,396,305,199,744
  5. Step 5: Solve for x
    x = 525,342,396,305,199,744/1,095,885,720.69
  6. Step 6: Final answer
    x = 479,376,988.30

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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.