Home / 77,880,071.60-116,820,107.40-39,616,319.60

Finding the Fourth Proportional to 77,880,071.60, 116,820,107.40 and 39,616,319.60

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Solution

The fourth proportional to 77,880,071.60, 116,820,107.40 and 39,616,319.60 is: 59,424,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,880,071.60 : 116,820,107.40 = 39,616,319.60 : x
  2. Step 2: Convert to fraction form
    77,880,071.60/116,820,107.40 = 39,616,319.60/x
  3. Step 3: Cross multiply
    77,880,071.60x = 116,820,107.40 × 39,616,319.60
  4. Step 4: Simplify right side
    77,880,071.60x = 4,627,982,710,464,725
  5. Step 5: Solve for x
    x = 4,627,982,710,464,725/77,880,071.60
  6. Step 6: Final answer
    x = 59,424,479.40

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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.