Home / 55,424,624.88-76,482,897.12-30,643,379.04

Finding the Fourth Proportional to 55,424,624.88, 76,482,897.12 and 30,643,379.04

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Solution

The fourth proportional to 55,424,624.88, 76,482,897.12 and 30,643,379.04 is: 42,286,157.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,424,624.88 : 76,482,897.12 = 30,643,379.04 : x
  2. Step 2: Convert to fraction form
    55,424,624.88/76,482,897.12 = 30,643,379.04/x
  3. Step 3: Cross multiply
    55,424,624.88x = 76,482,897.12 × 30,643,379.04
  4. Step 4: Simplify right side
    55,424,624.88x = 2,343,694,406,525,484.50
  5. Step 5: Solve for x
    x = 2,343,694,406,525,484.50/55,424,624.88
  6. Step 6: Final answer
    x = 42,286,157.31

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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.