Home / 420,060,525.50-579,692,804.63-231,888,373.67

Finding the Fourth Proportional to 420,060,525.50, 579,692,804.63 and 231,888,373.67

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Solution

The fourth proportional to 420,060,525.50, 579,692,804.63 and 231,888,373.67 is: 320,011,078.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,060,525.50 : 579,692,804.63 = 231,888,373.67 : x
  2. Step 2: Convert to fraction form
    420,060,525.50/579,692,804.63 = 231,888,373.67/x
  3. Step 3: Cross multiply
    420,060,525.50x = 579,692,804.63 × 231,888,373.67
  4. Step 4: Simplify right side
    420,060,525.50x = 134,424,021,689,793,840
  5. Step 5: Solve for x
    x = 134,424,021,689,793,840/420,060,525.50
  6. Step 6: Final answer
    x = 320,011,078.24

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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.