Home / 402,021,000.90-603,031,501.35-361,206,332.10

Finding the Fourth Proportional to 402,021,000.90, 603,031,501.35 and 361,206,332.10

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Solution

The fourth proportional to 402,021,000.90, 603,031,501.35 and 361,206,332.10 is: 541,809,498.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,021,000.90 : 603,031,501.35 = 361,206,332.10 : x
  2. Step 2: Convert to fraction form
    402,021,000.90/603,031,501.35 = 361,206,332.10/x
  3. Step 3: Cross multiply
    402,021,000.90x = 603,031,501.35 × 361,206,332.10
  4. Step 4: Simplify right side
    402,021,000.90x = 217,818,796,743,389,728
  5. Step 5: Solve for x
    x = 217,818,796,743,389,728/402,021,000.90
  6. Step 6: Final answer
    x = 541,809,498.15

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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.