Home / 228,597,876.98-315,473,725.10-128,128,154.48

Finding the Fourth Proportional to 228,597,876.98, 315,473,725.10 and 128,128,154.48

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Solution

The fourth proportional to 228,597,876.98, 315,473,725.10 and 128,128,154.48 is: 176,821,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,597,876.98 : 315,473,725.10 = 128,128,154.48 : x
  2. Step 2: Convert to fraction form
    228,597,876.98/315,473,725.10 = 128,128,154.48/x
  3. Step 3: Cross multiply
    228,597,876.98x = 315,473,725.10 × 128,128,154.48
  4. Step 4: Simplify right side
    228,597,876.98x = 40,421,066,181,775,848
  5. Step 5: Solve for x
    x = 40,421,066,181,775,848/228,597,876.98
  6. Step 6: Final answer
    x = 176,821,704.19

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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.