Home / 486,774,695.12-671,980,714.44-326,115,315.68

Finding the Fourth Proportional to 486,774,695.12, 671,980,714.44 and 326,115,315.68

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Solution

The fourth proportional to 486,774,695.12, 671,980,714.44 and 326,115,315.68 is: 450,194,319.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,774,695.12 : 671,980,714.44 = 326,115,315.68 : x
  2. Step 2: Convert to fraction form
    486,774,695.12/671,980,714.44 = 326,115,315.68/x
  3. Step 3: Cross multiply
    486,774,695.12x = 671,980,714.44 × 326,115,315.68
  4. Step 4: Simplify right side
    486,774,695.12x = 219,143,202,820,472,544
  5. Step 5: Solve for x
    x = 219,143,202,820,472,544/486,774,695.12
  6. Step 6: Final answer
    x = 450,194,319.91

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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.