Home / 12,997,964.16-17,931,543.48-7,838,458.56

Finding the Fourth Proportional to 12,997,964.16, 17,931,543.48 and 7,838,458.56

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Solution

The fourth proportional to 12,997,964.16, 17,931,543.48 and 7,838,458.56 is: 10,813,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,964.16 : 17,931,543.48 = 7,838,458.56 : x
  2. Step 2: Convert to fraction form
    12,997,964.16/17,931,543.48 = 7,838,458.56/x
  3. Step 3: Cross multiply
    12,997,964.16x = 17,931,543.48 × 7,838,458.56
  4. Step 4: Simplify right side
    12,997,964.16x = 140,555,660,484,818.19
  5. Step 5: Solve for x
    x = 140,555,660,484,818.19/12,997,964.16
  6. Step 6: Final answer
    x = 10,813,667.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.