Home / 217,620,374.40-326,430,561.60-189,276,854.40

Finding the Fourth Proportional to 217,620,374.40, 326,430,561.60 and 189,276,854.40

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Solution

The fourth proportional to 217,620,374.40, 326,430,561.60 and 189,276,854.40 is: 283,915,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,620,374.40 : 326,430,561.60 = 189,276,854.40 : x
  2. Step 2: Convert to fraction form
    217,620,374.40/326,430,561.60 = 189,276,854.40/x
  3. Step 3: Cross multiply
    217,620,374.40x = 326,430,561.60 × 189,276,854.40
  4. Step 4: Simplify right side
    217,620,374.40x = 61,785,749,879,673,440
  5. Step 5: Solve for x
    x = 61,785,749,879,673,440/217,620,374.40
  6. Step 6: Final answer
    x = 283,915,281.60

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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.