Home / 136,275,870.80-188,063,547.72-74,398,817.36

Finding the Fourth Proportional to 136,275,870.80, 188,063,547.72 and 74,398,817.36

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Solution

The fourth proportional to 136,275,870.80, 188,063,547.72 and 74,398,817.36 is: 102,671,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,275,870.80 : 188,063,547.72 = 74,398,817.36 : x
  2. Step 2: Convert to fraction form
    136,275,870.80/188,063,547.72 = 74,398,817.36/x
  3. Step 3: Cross multiply
    136,275,870.80x = 188,063,547.72 × 74,398,817.36
  4. Step 4: Simplify right side
    136,275,870.80x = 13,991,705,538,893,924
  5. Step 5: Solve for x
    x = 13,991,705,538,893,924/136,275,870.80
  6. Step 6: Final answer
    x = 102,671,921.72

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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.