Home / 341,539,631.60-512,309,447.40-86,237,999.60

Finding the Fourth Proportional to 341,539,631.60, 512,309,447.40 and 86,237,999.60

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Solution

The fourth proportional to 341,539,631.60, 512,309,447.40 and 86,237,999.60 is: 129,356,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,539,631.60 : 512,309,447.40 = 86,237,999.60 : x
  2. Step 2: Convert to fraction form
    341,539,631.60/512,309,447.40 = 86,237,999.60/x
  3. Step 3: Cross multiply
    341,539,631.60x = 512,309,447.40 × 86,237,999.60
  4. Step 4: Simplify right side
    341,539,631.60x = 44,180,541,919,957,416
  5. Step 5: Solve for x
    x = 44,180,541,919,957,416/341,539,631.60
  6. Step 6: Final answer
    x = 129,356,999.40

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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.