Home / 55,424,646.88-76,482,927.48-30,643,401.04

Finding the Fourth Proportional to 55,424,646.88, 76,482,927.48 and 30,643,401.04

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Solution

The fourth proportional to 55,424,646.88, 76,482,927.48 and 30,643,401.04 is: 42,286,187.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,424,646.88 : 76,482,927.48 = 30,643,401.04 : x
  2. Step 2: Convert to fraction form
    55,424,646.88/76,482,927.48 = 30,643,401.04/x
  3. Step 3: Cross multiply
    55,424,646.88x = 76,482,927.48 × 30,643,401.04
  4. Step 4: Simplify right side
    55,424,646.88x = 2,343,697,019,482,876.50
  5. Step 5: Solve for x
    x = 2,343,697,019,482,876.50/55,424,646.88
  6. Step 6: Final answer
    x = 42,286,187.67

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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.