Home / 210,545,932.70-315,840,003.60-72,353,339.30

Finding the Fourth Proportional to 210,545,932.70, 315,840,003.60 and 72,353,339.30

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Solution

The fourth proportional to 210,545,932.70, 315,840,003.60 and 72,353,339.30 is: 108,537,261.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,545,932.70 : 315,840,003.60 = 72,353,339.30 : x
  2. Step 2: Convert to fraction form
    210,545,932.70/315,840,003.60 = 72,353,339.30/x
  3. Step 3: Cross multiply
    210,545,932.70x = 315,840,003.60 × 72,353,339.30
  4. Step 4: Simplify right side
    210,545,932.70x = 22,852,078,944,984,024
  5. Step 5: Solve for x
    x = 22,852,078,944,984,024/210,545,932.70
  6. Step 6: Final answer
    x = 108,537,261.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.