Home / 201,887,686.98-278,698,009.77-118,244,209.86

Finding the Fourth Proportional to 201,887,686.98, 278,698,009.77 and 118,244,209.86

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Solution

The fourth proportional to 201,887,686.98, 278,698,009.77 and 118,244,209.86 is: 163,231,480.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,887,686.98 : 278,698,009.77 = 118,244,209.86 : x
  2. Step 2: Convert to fraction form
    201,887,686.98/278,698,009.77 = 118,244,209.86/x
  3. Step 3: Cross multiply
    201,887,686.98x = 278,698,009.77 × 118,244,209.86
  4. Step 4: Simplify right side
    201,887,686.98x = 32,954,425,954,808,208
  5. Step 5: Solve for x
    x = 32,954,425,954,808,208/201,887,686.98
  6. Step 6: Final answer
    x = 163,231,480.08

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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.