Home / 90,788,546-125,141,834.52-61,409,164.40

Finding the Fourth Proportional to 90,788,546, 125,141,834.52 and 61,409,164.40

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Solution

The fourth proportional to 90,788,546, 125,141,834.52 and 61,409,164.40 is: 84,645,650.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,788,546 : 125,141,834.52 = 61,409,164.40 : x
  2. Step 2: Convert to fraction form
    90,788,546/125,141,834.52 = 61,409,164.40/x
  3. Step 3: Cross multiply
    90,788,546x = 125,141,834.52 × 61,409,164.40
  4. Step 4: Simplify right side
    90,788,546x = 7,684,855,489,356,275
  5. Step 5: Solve for x
    x = 7,684,855,489,356,275/90,788,546
  6. Step 6: Final answer
    x = 84,645,650.01

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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.