Home / 61,431,378.05-92,147,411.54-20,490,704.79

Finding the Fourth Proportional to 61,431,378.05, 92,147,411.54 and 20,490,704.79

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Solution

The fourth proportional to 61,431,378.05, 92,147,411.54 and 20,490,704.79 is: 30,736,172.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,431,378.05 : 92,147,411.54 = 20,490,704.79 : x
  2. Step 2: Convert to fraction form
    61,431,378.05/92,147,411.54 = 20,490,704.79/x
  3. Step 3: Cross multiply
    61,431,378.05x = 92,147,411.54 × 20,490,704.79
  4. Step 4: Simplify right side
    61,431,378.05x = 1,888,165,406,935,931.25
  5. Step 5: Solve for x
    x = 1,888,165,406,935,931.25/61,431,378.05
  6. Step 6: Final answer
    x = 30,736,172.08

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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.