Home / 1,391,664,649.04-2,087,497,564.86-409,091,257.34

Finding the Fourth Proportional to 1,391,664,649.04, 2,087,497,564.86 and 409,091,257.34

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Solution

The fourth proportional to 1,391,664,649.04, 2,087,497,564.86 and 409,091,257.34 is: 613,637,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,664,649.04 : 2,087,497,564.86 = 409,091,257.34 : x
  2. Step 2: Convert to fraction form
    1,391,664,649.04/2,087,497,564.86 = 409,091,257.34/x
  3. Step 3: Cross multiply
    1,391,664,649.04x = 2,087,497,564.86 × 409,091,257.34
  4. Step 4: Simplify right side
    1,391,664,649.04x = 853,977,003,502,765,440
  5. Step 5: Solve for x
    x = 853,977,003,502,765,440/1,391,664,649.04
  6. Step 6: Final answer
    x = 613,637,059.83

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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.