Home / 12,997,928.15-19,465,946.24-7,521,478.28

Finding the Fourth Proportional to 12,997,928.15, 19,465,946.24 and 7,521,478.28

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Solution

The fourth proportional to 12,997,928.15, 19,465,946.24 and 7,521,478.28 is: 11,264,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,928.15 : 19,465,946.24 = 7,521,478.28 : x
  2. Step 2: Convert to fraction form
    12,997,928.15/19,465,946.24 = 7,521,478.28/x
  3. Step 3: Cross multiply
    12,997,928.15x = 19,465,946.24 × 7,521,478.28
  4. Step 4: Simplify right side
    12,997,928.15x = 146,412,691,746,477.94
  5. Step 5: Solve for x
    x = 146,412,691,746,477.94/12,997,928.15
  6. Step 6: Final answer
    x = 11,264,309.98

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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.