Home / 85,868,603.10-128,758,581.45-25,276,455.90

Finding the Fourth Proportional to 85,868,603.10, 128,758,581.45 and 25,276,455.90

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Solution

The fourth proportional to 85,868,603.10, 128,758,581.45 and 25,276,455.90 is: 37,901,636.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,868,603.10 : 128,758,581.45 = 25,276,455.90 : x
  2. Step 2: Convert to fraction form
    85,868,603.10/128,758,581.45 = 25,276,455.90/x
  3. Step 3: Cross multiply
    85,868,603.10x = 128,758,581.45 × 25,276,455.90
  4. Step 4: Simplify right side
    85,868,603.10x = 3,254,560,605,767,483
  5. Step 5: Solve for x
    x = 3,254,560,605,767,483/85,868,603.10
  6. Step 6: Final answer
    x = 37,901,636.78

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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.