Home / 187,216,641.60-280,824,962.40-85,179,969.60

Finding the Fourth Proportional to 187,216,641.60, 280,824,962.40 and 85,179,969.60

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Solution

The fourth proportional to 187,216,641.60, 280,824,962.40 and 85,179,969.60 is: 127,769,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,216,641.60 : 280,824,962.40 = 85,179,969.60 : x
  2. Step 2: Convert to fraction form
    187,216,641.60/280,824,962.40 = 85,179,969.60/x
  3. Step 3: Cross multiply
    187,216,641.60x = 280,824,962.40 × 85,179,969.60
  4. Step 4: Simplify right side
    187,216,641.60x = 23,920,661,760,153,140
  5. Step 5: Solve for x
    x = 23,920,661,760,153,140/187,216,641.60
  6. Step 6: Final answer
    x = 127,769,954.40

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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.