Home / 144,292,392.55-199,118,167.14-78,211,472.07

Finding the Fourth Proportional to 144,292,392.55, 199,118,167.14 and 78,211,472.07

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Solution

The fourth proportional to 144,292,392.55, 199,118,167.14 and 78,211,472.07 is: 107,928,939.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,292,392.55 : 199,118,167.14 = 78,211,472.07 : x
  2. Step 2: Convert to fraction form
    144,292,392.55/199,118,167.14 = 78,211,472.07/x
  3. Step 3: Cross multiply
    144,292,392.55x = 199,118,167.14 × 78,211,472.07
  4. Step 4: Simplify right side
    144,292,392.55x = 15,573,324,967,899,700
  5. Step 5: Solve for x
    x = 15,573,324,967,899,700/144,292,392.55
  6. Step 6: Final answer
    x = 107,928,939.93

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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.