Home / 268,009,458.60-402,014,187.90-86,256,636.60

Finding the Fourth Proportional to 268,009,458.60, 402,014,187.90 and 86,256,636.60

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Solution

The fourth proportional to 268,009,458.60, 402,014,187.90 and 86,256,636.60 is: 129,384,954.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,009,458.60 : 402,014,187.90 = 86,256,636.60 : x
  2. Step 2: Convert to fraction form
    268,009,458.60/402,014,187.90 = 86,256,636.60/x
  3. Step 3: Cross multiply
    268,009,458.60x = 402,014,187.90 × 86,256,636.60
  4. Step 4: Simplify right side
    268,009,458.60x = 34,676,391,713,734,412
  5. Step 5: Solve for x
    x = 34,676,391,713,734,412/268,009,458.60
  6. Step 6: Final answer
    x = 129,384,954.90

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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.