Home / 128,382,986.86-177,168,521.85-73,380,024.34

Finding the Fourth Proportional to 128,382,986.86, 177,168,521.85 and 73,380,024.34

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Solution

The fourth proportional to 128,382,986.86, 177,168,521.85 and 73,380,024.34 is: 101,264,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,382,986.86 : 177,168,521.85 = 73,380,024.34 : x
  2. Step 2: Convert to fraction form
    128,382,986.86/177,168,521.85 = 73,380,024.34/x
  3. Step 3: Cross multiply
    128,382,986.86x = 177,168,521.85 × 73,380,024.34
  4. Step 4: Simplify right side
    128,382,986.86x = 13,000,630,445,634,822
  5. Step 5: Solve for x
    x = 13,000,630,445,634,822/128,382,986.86
  6. Step 6: Final answer
    x = 101,264,433.58

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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.