Home / 221,205,338.40-331,808,007.60-83,030,678.40

Finding the Fourth Proportional to 221,205,338.40, 331,808,007.60 and 83,030,678.40

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Solution

The fourth proportional to 221,205,338.40, 331,808,007.60 and 83,030,678.40 is: 124,546,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,205,338.40 : 331,808,007.60 = 83,030,678.40 : x
  2. Step 2: Convert to fraction form
    221,205,338.40/331,808,007.60 = 83,030,678.40/x
  3. Step 3: Cross multiply
    221,205,338.40x = 331,808,007.60 × 83,030,678.40
  4. Step 4: Simplify right side
    221,205,338.40x = 27,550,243,969,580,360
  5. Step 5: Solve for x
    x = 27,550,243,969,580,360/221,205,338.40
  6. Step 6: Final answer
    x = 124,546,017.60

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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.