Home / 287,330,783.73-396,516,466.35-155,171,767.52

Finding the Fourth Proportional to 287,330,783.73, 396,516,466.35 and 155,171,767.52

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Solution

The fourth proportional to 287,330,783.73, 396,516,466.35 and 155,171,767.52 is: 214,137,030.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,330,783.73 : 396,516,466.35 = 155,171,767.52 : x
  2. Step 2: Convert to fraction form
    287,330,783.73/396,516,466.35 = 155,171,767.52/x
  3. Step 3: Cross multiply
    287,330,783.73x = 396,516,466.35 × 155,171,767.52
  4. Step 4: Simplify right side
    287,330,783.73x = 61,528,160,932,331,520
  5. Step 5: Solve for x
    x = 61,528,160,932,331,520/287,330,783.73
  6. Step 6: Final answer
    x = 214,137,030.96

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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.