Home / 107,190,001.20-160,785,001.80-66,375,332.40

Finding the Fourth Proportional to 107,190,001.20, 160,785,001.80 and 66,375,332.40

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Solution

The fourth proportional to 107,190,001.20, 160,785,001.80 and 66,375,332.40 is: 99,562,998.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,190,001.20 : 160,785,001.80 = 66,375,332.40 : x
  2. Step 2: Convert to fraction form
    107,190,001.20/160,785,001.80 = 66,375,332.40/x
  3. Step 3: Cross multiply
    107,190,001.20x = 160,785,001.80 × 66,375,332.40
  4. Step 4: Simplify right side
    107,190,001.20x = 10,672,157,939,409,598
  5. Step 5: Solve for x
    x = 10,672,157,939,409,598/107,190,001.20
  6. Step 6: Final answer
    x = 99,562,998.60

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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.