Home / 10,780,378.56-14,875,509.06-6,429,975.48

Finding the Fourth Proportional to 10,780,378.56, 14,875,509.06 and 6,429,975.48

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Solution

The fourth proportional to 10,780,378.56, 14,875,509.06 and 6,429,975.48 is: 8,872,523.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,378.56 : 14,875,509.06 = 6,429,975.48 : x
  2. Step 2: Convert to fraction form
    10,780,378.56/14,875,509.06 = 6,429,975.48/x
  3. Step 3: Cross multiply
    10,780,378.56x = 14,875,509.06 × 6,429,975.48
  4. Step 4: Simplify right side
    10,780,378.56x = 95,649,158,508,317.86
  5. Step 5: Solve for x
    x = 95,649,158,508,317.86/10,780,378.56
  6. Step 6: Final answer
    x = 8,872,523.17

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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.