Home / 409,554,817.20-614,332,225.80-118,431,437.40

Finding the Fourth Proportional to 409,554,817.20, 614,332,225.80 and 118,431,437.40

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Solution

The fourth proportional to 409,554,817.20, 614,332,225.80 and 118,431,437.40 is: 177,647,156.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,554,817.20 : 614,332,225.80 = 118,431,437.40 : x
  2. Step 2: Convert to fraction form
    409,554,817.20/614,332,225.80 = 118,431,437.40/x
  3. Step 3: Cross multiply
    409,554,817.20x = 614,332,225.80 × 118,431,437.40
  4. Step 4: Simplify right side
    409,554,817.20x = 72,756,248,542,635,360
  5. Step 5: Solve for x
    x = 72,756,248,542,635,360/409,554,817.20
  6. Step 6: Final answer
    x = 177,647,156.10

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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.