Home / 375,651,669,965.40-518,370,854,890.10-210,821,354,966.86

Finding the Fourth Proportional to 375,651,669,965.40, 518,370,854,890.10 and 210,821,354,966.86

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Solution

The fourth proportional to 375,651,669,965.40, 518,370,854,890.10 and 210,821,354,966.86 is: 290,917,503,476.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,651,669,965.40 : 518,370,854,890.10 = 210,821,354,966.86 : x
  2. Step 2: Convert to fraction form
    375,651,669,965.40/518,370,854,890.10 = 210,821,354,966.86/x
  3. Step 3: Cross multiply
    375,651,669,965.40x = 518,370,854,890.10 × 210,821,354,966.86
  4. Step 4: Simplify right side
    375,651,669,965.40x = 109,283,646,003,260,440,969,216
  5. Step 5: Solve for x
    x = 109,283,646,003,260,440,969,216/375,651,669,965.40
  6. Step 6: Final answer
    x = 290,917,503,476.89

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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.