Home / 675,140,438.80-1,012,710,658.20-612,658,723.60

Finding the Fourth Proportional to 675,140,438.80, 1,012,710,658.20 and 612,658,723.60

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Solution

The fourth proportional to 675,140,438.80, 1,012,710,658.20 and 612,658,723.60 is: 918,988,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,140,438.80 : 1,012,710,658.20 = 612,658,723.60 : x
  2. Step 2: Convert to fraction form
    675,140,438.80/1,012,710,658.20 = 612,658,723.60/x
  3. Step 3: Cross multiply
    675,140,438.80x = 1,012,710,658.20 × 612,658,723.60
  4. Step 4: Simplify right side
    675,140,438.80x = 620,446,019,228,927,872
  5. Step 5: Solve for x
    x = 620,446,019,228,927,872/675,140,438.80
  6. Step 6: Final answer
    x = 918,988,085.40

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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.