Home / 315,615,361.12-435,562,649.52-176,386,118.78

Finding the Fourth Proportional to 315,615,361.12, 435,562,649.52 and 176,386,118.78

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Solution

The fourth proportional to 315,615,361.12, 435,562,649.52 and 176,386,118.78 is: 243,420,361.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,615,361.12 : 435,562,649.52 = 176,386,118.78 : x
  2. Step 2: Convert to fraction form
    315,615,361.12/435,562,649.52 = 176,386,118.78/x
  3. Step 3: Cross multiply
    315,615,361.12x = 435,562,649.52 × 176,386,118.78
  4. Step 4: Simplify right side
    315,615,361.12x = 76,827,205,234,366,224
  5. Step 5: Solve for x
    x = 76,827,205,234,366,224/315,615,361.12
  6. Step 6: Final answer
    x = 243,420,361.30

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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.