Home / 489,993,172.96-676,182,064.65-266,976,687.40

Finding the Fourth Proportional to 489,993,172.96, 676,182,064.65 and 266,976,687.40

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Solution

The fourth proportional to 489,993,172.96, 676,182,064.65 and 266,976,687.40 is: 368,423,189.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,993,172.96 : 676,182,064.65 = 266,976,687.40 : x
  2. Step 2: Convert to fraction form
    489,993,172.96/676,182,064.65 = 266,976,687.40/x
  3. Step 3: Cross multiply
    489,993,172.96x = 676,182,064.65 × 266,976,687.40
  4. Step 4: Simplify right side
    489,993,172.96x = 180,524,847,699,549,632
  5. Step 5: Solve for x
    x = 180,524,847,699,549,632/489,993,172.96
  6. Step 6: Final answer
    x = 368,423,189.67

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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.