Home / 83,640,690.90-125,461,036.35-74,313,901.35

Finding the Fourth Proportional to 83,640,690.90, 125,461,036.35 and 74,313,901.35

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Solution

The fourth proportional to 83,640,690.90, 125,461,036.35 and 74,313,901.35 is: 111,470,852.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,640,690.90 : 125,461,036.35 = 74,313,901.35 : x
  2. Step 2: Convert to fraction form
    83,640,690.90/125,461,036.35 = 74,313,901.35/x
  3. Step 3: Cross multiply
    83,640,690.90x = 125,461,036.35 × 74,313,901.35
  4. Step 4: Simplify right side
    83,640,690.90x = 9,323,499,078,582,662
  5. Step 5: Solve for x
    x = 9,323,499,078,582,662/83,640,690.90
  6. Step 6: Final answer
    x = 111,470,852.03

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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.