Home / 42,390,012.60-63,593,313.30-18,128,892.60

Finding the Fourth Proportional to 42,390,012.60, 63,593,313.30 and 18,128,892.60

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Solution

The fourth proportional to 42,390,012.60, 63,593,313.30 and 18,128,892.60 is: 27,196,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,390,012.60 : 63,593,313.30 = 18,128,892.60 : x
  2. Step 2: Convert to fraction form
    42,390,012.60/63,593,313.30 = 18,128,892.60/x
  3. Step 3: Cross multiply
    42,390,012.60x = 63,593,313.30 × 18,128,892.60
  4. Step 4: Simplify right side
    42,390,012.60x = 1,152,876,346,893,851.50
  5. Step 5: Solve for x
    x = 1,152,876,346,893,851.50/42,390,012.60
  6. Step 6: Final answer
    x = 27,196,886.16

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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.