Home / 118,692,040.80-178,038,061.20-89,592,693.60

Finding the Fourth Proportional to 118,692,040.80, 178,038,061.20 and 89,592,693.60

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Solution

The fourth proportional to 118,692,040.80, 178,038,061.20 and 89,592,693.60 is: 134,389,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,692,040.80 : 178,038,061.20 = 89,592,693.60 : x
  2. Step 2: Convert to fraction form
    118,692,040.80/178,038,061.20 = 89,592,693.60/x
  3. Step 3: Cross multiply
    118,692,040.80x = 178,038,061.20 × 89,592,693.60
  4. Step 4: Simplify right side
    118,692,040.80x = 15,950,909,466,229,646
  5. Step 5: Solve for x
    x = 15,950,909,466,229,646/118,692,040.80
  6. Step 6: Final answer
    x = 134,389,040.40

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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.