Home / 67,041,015-100,507,279.23-20,959,175.40

Finding the Fourth Proportional to 67,041,015, 100,507,279.23 and 20,959,175.40

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Solution

The fourth proportional to 67,041,015, 100,507,279.23 and 20,959,175.40 is: 31,421,804.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,041,015 : 100,507,279.23 = 20,959,175.40 : x
  2. Step 2: Convert to fraction form
    67,041,015/100,507,279.23 = 20,959,175.40/x
  3. Step 3: Cross multiply
    67,041,015x = 100,507,279.23 × 20,959,175.40
  4. Step 4: Simplify right side
    67,041,015x = 2,106,549,694,358,347
  5. Step 5: Solve for x
    x = 2,106,549,694,358,347/67,041,015
  6. Step 6: Final answer
    x = 31,421,804.91

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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.