Home / 113,918,945.27-157,208,899.28-61,707,980.91

Finding the Fourth Proportional to 113,918,945.27, 157,208,899.28 and 61,707,980.91

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Solution

The fourth proportional to 113,918,945.27, 157,208,899.28 and 61,707,980.91 is: 85,157,422.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,918,945.27 : 157,208,899.28 = 61,707,980.91 : x
  2. Step 2: Convert to fraction form
    113,918,945.27/157,208,899.28 = 61,707,980.91/x
  3. Step 3: Cross multiply
    113,918,945.27x = 157,208,899.28 × 61,707,980.91
  4. Step 4: Simplify right side
    113,918,945.27x = 9,701,043,755,048,890
  5. Step 5: Solve for x
    x = 9,701,043,755,048,890/113,918,945.27
  6. Step 6: Final answer
    x = 85,157,422.52

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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.