Home / 268,326,009.60-402,489,014.40-86,573,187.60

Finding the Fourth Proportional to 268,326,009.60, 402,489,014.40 and 86,573,187.60

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Solution

The fourth proportional to 268,326,009.60, 402,489,014.40 and 86,573,187.60 is: 129,859,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,326,009.60 : 402,489,014.40 = 86,573,187.60 : x
  2. Step 2: Convert to fraction form
    268,326,009.60/402,489,014.40 = 86,573,187.60/x
  3. Step 3: Cross multiply
    268,326,009.60x = 402,489,014.40 × 86,573,187.60
  4. Step 4: Simplify right side
    268,326,009.60x = 34,844,756,950,590,296
  5. Step 5: Solve for x
    x = 34,844,756,950,590,296/268,326,009.60
  6. Step 6: Final answer
    x = 129,859,781.40

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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.