Home / 1,387,487,972.34-1,914,854,476.59-761,077,469.61

Finding the Fourth Proportional to 1,387,487,972.34, 1,914,854,476.59 and 761,077,469.61

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Solution

The fourth proportional to 1,387,487,972.34, 1,914,854,476.59 and 761,077,469.61 is: 1,050,353,321.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,487,972.34 : 1,914,854,476.59 = 761,077,469.61 : x
  2. Step 2: Convert to fraction form
    1,387,487,972.34/1,914,854,476.59 = 761,077,469.61/x
  3. Step 3: Cross multiply
    1,387,487,972.34x = 1,914,854,476.59 × 761,077,469.61
  4. Step 4: Simplify right side
    1,387,487,972.34x = 1,457,352,599,714,498,048
  5. Step 5: Solve for x
    x = 1,457,352,599,714,498,048/1,387,487,972.34
  6. Step 6: Final answer
    x = 1,050,353,321.09

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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.