Home / 90,030,344.75-124,173,327.39-77,492,738.15

Finding the Fourth Proportional to 90,030,344.75, 124,173,327.39 and 77,492,738.15

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Solution

The fourth proportional to 90,030,344.75, 124,173,327.39 and 77,492,738.15 is: 106,880,976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,030,344.75 : 124,173,327.39 = 77,492,738.15 : x
  2. Step 2: Convert to fraction form
    90,030,344.75/124,173,327.39 = 77,492,738.15/x
  3. Step 3: Cross multiply
    90,030,344.75x = 124,173,327.39 × 77,492,738.15
  4. Step 4: Simplify right side
    90,030,344.75x = 9,622,531,144,703,160
  5. Step 5: Solve for x
    x = 9,622,531,144,703,160/90,030,344.75
  6. Step 6: Final answer
    x = 106,880,976.31

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Double scale
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1.5x scale

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.