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Finding the Fourth Proportional to 163,560,281.60, 245,132,025.60 and 86,920,025.60

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Solution

The fourth proportional to 163,560,281.60, 245,132,025.60 and 86,920,025.60 is: 130,269,291.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,560,281.60 : 245,132,025.60 = 86,920,025.60 : x
  2. Step 2: Convert to fraction form
    163,560,281.60/245,132,025.60 = 86,920,025.60/x
  3. Step 3: Cross multiply
    163,560,281.60x = 245,132,025.60 × 86,920,025.60
  4. Step 4: Simplify right side
    163,560,281.60x = 21,306,881,940,531,852
  5. Step 5: Solve for x
    x = 21,306,881,940,531,852/163,560,281.60
  6. Step 6: Final answer
    x = 130,269,291.13

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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.