Home / 163,743,617.60-245,615,426.40-87,216,113.60

Finding the Fourth Proportional to 163,743,617.60, 245,615,426.40 and 87,216,113.60

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Solution

The fourth proportional to 163,743,617.60, 245,615,426.40 and 87,216,113.60 is: 130,824,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,743,617.60 : 245,615,426.40 = 87,216,113.60 : x
  2. Step 2: Convert to fraction form
    163,743,617.60/245,615,426.40 = 87,216,113.60/x
  3. Step 3: Cross multiply
    163,743,617.60x = 245,615,426.40 × 87,216,113.60
  4. Step 4: Simplify right side
    163,743,617.60x = 21,421,622,930,814,840
  5. Step 5: Solve for x
    x = 21,421,622,930,814,840/163,743,617.60
  6. Step 6: Final answer
    x = 130,824,170.40

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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.