Home / 81,028,545.90-111,830,037.75-46,213,255.50

Finding the Fourth Proportional to 81,028,545.90, 111,830,037.75 and 46,213,255.50

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Solution

The fourth proportional to 81,028,545.90, 111,830,037.75 and 46,213,255.50 is: 63,780,363.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,028,545.90 : 111,830,037.75 = 46,213,255.50 : x
  2. Step 2: Convert to fraction form
    81,028,545.90/111,830,037.75 = 46,213,255.50/x
  3. Step 3: Cross multiply
    81,028,545.90x = 111,830,037.75 × 46,213,255.50
  4. Step 4: Simplify right side
    81,028,545.90x = 5,168,030,107,115,395
  5. Step 5: Solve for x
    x = 5,168,030,107,115,395/81,028,545.90
  6. Step 6: Final answer
    x = 63,780,363.45

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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.