Home / 289,708,010.40-434,562,015.60-153,659,114.40

Finding the Fourth Proportional to 289,708,010.40, 434,562,015.60 and 153,659,114.40

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Solution

The fourth proportional to 289,708,010.40, 434,562,015.60 and 153,659,114.40 is: 230,488,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,708,010.40 : 434,562,015.60 = 153,659,114.40 : x
  2. Step 2: Convert to fraction form
    289,708,010.40/434,562,015.60 = 153,659,114.40/x
  3. Step 3: Cross multiply
    289,708,010.40x = 434,562,015.60 × 153,659,114.40
  4. Step 4: Simplify right side
    289,708,010.40x = 66,774,414,468,974,992
  5. Step 5: Solve for x
    x = 66,774,414,468,974,992/289,708,010.40
  6. Step 6: Final answer
    x = 230,488,671.60

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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.