Home / 56,771,518.07-78,344,729.26-30,666,047.43

Finding the Fourth Proportional to 56,771,518.07, 78,344,729.26 and 30,666,047.43

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Solution

The fourth proportional to 56,771,518.07, 78,344,729.26 and 30,666,047.43 is: 42,319,163.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,771,518.07 : 78,344,729.26 = 30,666,047.43 : x
  2. Step 2: Convert to fraction form
    56,771,518.07/78,344,729.26 = 30,666,047.43/x
  3. Step 3: Cross multiply
    56,771,518.07x = 78,344,729.26 × 30,666,047.43
  4. Step 4: Simplify right side
    56,771,518.07x = 2,402,523,183,377,669
  5. Step 5: Solve for x
    x = 2,402,523,183,377,669/56,771,518.07
  6. Step 6: Final answer
    x = 42,319,163.99

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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.