Home / 268,575,134.40-402,862,679.55-74,486,547.54

Finding the Fourth Proportional to 268,575,134.40, 402,862,679.55 and 74,486,547.54

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Solution

The fourth proportional to 268,575,134.40, 402,862,679.55 and 74,486,547.54 is: 111,729,815.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,575,134.40 : 402,862,679.55 = 74,486,547.54 : x
  2. Step 2: Convert to fraction form
    268,575,134.40/402,862,679.55 = 74,486,547.54/x
  3. Step 3: Cross multiply
    268,575,134.40x = 402,862,679.55 × 74,486,547.54
  4. Step 4: Simplify right side
    268,575,134.40x = 30,007,850,132,392,864
  5. Step 5: Solve for x
    x = 30,007,850,132,392,864/268,575,134.40
  6. Step 6: Final answer
    x = 111,729,815.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.