Home / 489,986,678.68-735,087,638.10-144,913,403.80

Finding the Fourth Proportional to 489,986,678.68, 735,087,638.10 and 144,913,403.80

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Solution

The fourth proportional to 489,986,678.68, 735,087,638.10 and 144,913,403.80 is: 217,401,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,986,678.68 : 735,087,638.10 = 144,913,403.80 : x
  2. Step 2: Convert to fraction form
    489,986,678.68/735,087,638.10 = 144,913,403.80/x
  3. Step 3: Cross multiply
    489,986,678.68x = 735,087,638.10 × 144,913,403.80
  4. Step 4: Simplify right side
    489,986,678.68x = 106,524,051,728,373,584
  5. Step 5: Solve for x
    x = 106,524,051,728,373,584/489,986,678.68
  6. Step 6: Final answer
    x = 217,401,934.30

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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.