Home / 131,152,018.80-196,853,999.40-66,528,793.20

Finding the Fourth Proportional to 131,152,018.80, 196,853,999.40 and 66,528,793.20

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Solution

The fourth proportional to 131,152,018.80, 196,853,999.40 and 66,528,793.20 is: 99,857,090.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,152,018.80 : 196,853,999.40 = 66,528,793.20 : x
  2. Step 2: Convert to fraction form
    131,152,018.80/196,853,999.40 = 66,528,793.20/x
  3. Step 3: Cross multiply
    131,152,018.80x = 196,853,999.40 × 66,528,793.20
  4. Step 4: Simplify right side
    131,152,018.80x = 13,096,459,016,675,526
  5. Step 5: Solve for x
    x = 13,096,459,016,675,526/131,152,018.80
  6. Step 6: Final answer
    x = 99,857,090.55

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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.