Home / 421,515,177.18-581,697,831.11-230,773,012.13

Finding the Fourth Proportional to 421,515,177.18, 581,697,831.11 and 230,773,012.13

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Solution

The fourth proportional to 421,515,177.18, 581,697,831.11 and 230,773,012.13 is: 318,470,527.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,515,177.18 : 581,697,831.11 = 230,773,012.13 : x
  2. Step 2: Convert to fraction form
    421,515,177.18/581,697,831.11 = 230,773,012.13/x
  3. Step 3: Cross multiply
    421,515,177.18x = 581,697,831.11 × 230,773,012.13
  4. Step 4: Simplify right side
    421,515,177.18x = 134,240,160,635,043,104
  5. Step 5: Solve for x
    x = 134,240,160,635,043,104/421,515,177.18
  6. Step 6: Final answer
    x = 318,470,527.05

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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.