Home / 12,897,468.20-19,318,208.70-10,657,980.20

Finding the Fourth Proportional to 12,897,468.20, 19,318,208.70 and 10,657,980.20

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Solution

The fourth proportional to 12,897,468.20, 19,318,208.70 and 10,657,980.20 is: 15,963,837.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897,468.20 : 19,318,208.70 = 10,657,980.20 : x
  2. Step 2: Convert to fraction form
    12,897,468.20/19,318,208.70 = 10,657,980.20/x
  3. Step 3: Cross multiply
    12,897,468.20x = 19,318,208.70 × 10,657,980.20
  4. Step 4: Simplify right side
    12,897,468.20x = 205,893,085,824,067.72
  5. Step 5: Solve for x
    x = 205,893,085,824,067.72/12,897,468.20
  6. Step 6: Final answer
    x = 15,963,837.45

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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.