Home / 74,084,585.20-111,126,877.80-72,667,409.20

Finding the Fourth Proportional to 74,084,585.20, 111,126,877.80 and 72,667,409.20

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Solution

The fourth proportional to 74,084,585.20, 111,126,877.80 and 72,667,409.20 is: 109,001,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,084,585.20 : 111,126,877.80 = 72,667,409.20 : x
  2. Step 2: Convert to fraction form
    74,084,585.20/111,126,877.80 = 72,667,409.20/x
  3. Step 3: Cross multiply
    74,084,585.20x = 111,126,877.80 × 72,667,409.20
  4. Step 4: Simplify right side
    74,084,585.20x = 8,075,302,302,210,996
  5. Step 5: Solve for x
    x = 8,075,302,302,210,996/74,084,585.20
  6. Step 6: Final answer
    x = 109,001,113.80

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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.