Home / 103,117,236.70-142,298,949-56,707,490.74

Finding the Fourth Proportional to 103,117,236.70, 142,298,949 and 56,707,490.74

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Solution

The fourth proportional to 103,117,236.70, 142,298,949 and 56,707,490.74 is: 78,254,776.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,117,236.70 : 142,298,949 = 56,707,490.74 : x
  2. Step 2: Convert to fraction form
    103,117,236.70/142,298,949 = 56,707,490.74/x
  3. Step 3: Cross multiply
    103,117,236.70x = 142,298,949 × 56,707,490.74
  4. Step 4: Simplify right side
    103,117,236.70x = 8,069,416,332,729,233
  5. Step 5: Solve for x
    x = 8,069,416,332,729,233/103,117,236.70
  6. Step 6: Final answer
    x = 78,254,776.71

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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.