Home / 111,169,973.48-153,405,528.89-61,612,435.93

Finding the Fourth Proportional to 111,169,973.48, 153,405,528.89 and 61,612,435.93

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Solution

The fourth proportional to 111,169,973.48, 153,405,528.89 and 61,612,435.93 is: 85,020,154.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,169,973.48 : 153,405,528.89 = 61,612,435.93 : x
  2. Step 2: Convert to fraction form
    111,169,973.48/153,405,528.89 = 61,612,435.93/x
  3. Step 3: Cross multiply
    111,169,973.48x = 153,405,528.89 × 61,612,435.93
  4. Step 4: Simplify right side
    111,169,973.48x = 9,451,688,320,589,716
  5. Step 5: Solve for x
    x = 9,451,688,320,589,716/111,169,973.48
  6. Step 6: Final answer
    x = 85,020,154.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.