Home / 127,809,991.80-191,714,987.70-107,402,657.40

Finding the Fourth Proportional to 127,809,991.80, 191,714,987.70 and 107,402,657.40

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Solution

The fourth proportional to 127,809,991.80, 191,714,987.70 and 107,402,657.40 is: 161,103,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,809,991.80 : 191,714,987.70 = 107,402,657.40 : x
  2. Step 2: Convert to fraction form
    127,809,991.80/191,714,987.70 = 107,402,657.40/x
  3. Step 3: Cross multiply
    127,809,991.80x = 191,714,987.70 × 107,402,657.40
  4. Step 4: Simplify right side
    127,809,991.80x = 20,590,699,142,388,312
  5. Step 5: Solve for x
    x = 20,590,699,142,388,312/127,809,991.80
  6. Step 6: Final answer
    x = 161,103,986.10

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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.