Home / 207,186,555.20-310,779,832.80-70,859,796.80

Finding the Fourth Proportional to 207,186,555.20, 310,779,832.80 and 70,859,796.80

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Solution

The fourth proportional to 207,186,555.20, 310,779,832.80 and 70,859,796.80 is: 106,289,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,186,555.20 : 310,779,832.80 = 70,859,796.80 : x
  2. Step 2: Convert to fraction form
    207,186,555.20/310,779,832.80 = 70,859,796.80/x
  3. Step 3: Cross multiply
    207,186,555.20x = 310,779,832.80 × 70,859,796.80
  4. Step 4: Simplify right side
    207,186,555.20x = 22,021,795,801,745,976
  5. Step 5: Solve for x
    x = 22,021,795,801,745,976/207,186,555.20
  6. Step 6: Final answer
    x = 106,289,695.20

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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.