Home / 56,854,303.50-78,458,937.60-30,748,821.09

Finding the Fourth Proportional to 56,854,303.50, 78,458,937.60 and 30,748,821.09

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Solution

The fourth proportional to 56,854,303.50, 78,458,937.60 and 30,748,821.09 is: 42,433,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,854,303.50 : 78,458,937.60 = 30,748,821.09 : x
  2. Step 2: Convert to fraction form
    56,854,303.50/78,458,937.60 = 30,748,821.09/x
  3. Step 3: Cross multiply
    56,854,303.50x = 78,458,937.60 × 30,748,821.09
  4. Step 4: Simplify right side
    56,854,303.50x = 2,412,519,835,173,874
  5. Step 5: Solve for x
    x = 2,412,519,835,173,874/56,854,303.50
  6. Step 6: Final answer
    x = 42,433,372.44

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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.