Home / 12,772,221.60-19,158,332.40-12,142,365.60

Finding the Fourth Proportional to 12,772,221.60, 19,158,332.40 and 12,142,365.60

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Solution

The fourth proportional to 12,772,221.60, 19,158,332.40 and 12,142,365.60 is: 18,213,548.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772,221.60 : 19,158,332.40 = 12,142,365.60 : x
  2. Step 2: Convert to fraction form
    12,772,221.60/19,158,332.40 = 12,142,365.60/x
  3. Step 3: Cross multiply
    12,772,221.60x = 19,158,332.40 × 12,142,365.60
  4. Step 4: Simplify right side
    12,772,221.60x = 232,627,476,287,125.41
  5. Step 5: Solve for x
    x = 232,627,476,287,125.41/12,772,221.60
  6. Step 6: Final answer
    x = 18,213,548.40

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1.5x scale

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.