Home / 140,025,686.40-210,038,529.60-89,133,321.60

Finding the Fourth Proportional to 140,025,686.40, 210,038,529.60 and 89,133,321.60

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Solution

The fourth proportional to 140,025,686.40, 210,038,529.60 and 89,133,321.60 is: 133,699,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,025,686.40 : 210,038,529.60 = 89,133,321.60 : x
  2. Step 2: Convert to fraction form
    140,025,686.40/210,038,529.60 = 89,133,321.60/x
  3. Step 3: Cross multiply
    140,025,686.40x = 210,038,529.60 × 89,133,321.60
  4. Step 4: Simplify right side
    140,025,686.40x = 18,721,431,807,227,916
  5. Step 5: Solve for x
    x = 18,721,431,807,227,916/140,025,686.40
  6. Step 6: Final answer
    x = 133,699,982.40

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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.