Home / 136,870,928.52-188,818,567.14-121,205,917.32

Finding the Fourth Proportional to 136,870,928.52, 188,818,567.14 and 121,205,917.32

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Solution

The fourth proportional to 136,870,928.52, 188,818,567.14 and 121,205,917.32 is: 167,208,098.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,870,928.52 : 188,818,567.14 = 121,205,917.32 : x
  2. Step 2: Convert to fraction form
    136,870,928.52/188,818,567.14 = 121,205,917.32/x
  3. Step 3: Cross multiply
    136,870,928.52x = 188,818,567.14 × 121,205,917.32
  4. Step 4: Simplify right side
    136,870,928.52x = 22,885,927,637,251,704
  5. Step 5: Solve for x
    x = 22,885,927,637,251,704/136,870,928.52
  6. Step 6: Final answer
    x = 167,208,098.06

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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.