Home / 257,860,810.20-385,940,909.70-181,333,306.20

Finding the Fourth Proportional to 257,860,810.20, 385,940,909.70 and 181,333,306.20

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Solution

The fourth proportional to 257,860,810.20, 385,940,909.70 and 181,333,306.20 is: 271,402,005.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,860,810.20 : 385,940,909.70 = 181,333,306.20 : x
  2. Step 2: Convert to fraction form
    257,860,810.20/385,940,909.70 = 181,333,306.20/x
  3. Step 3: Cross multiply
    257,860,810.20x = 385,940,909.70 × 181,333,306.20
  4. Step 4: Simplify right side
    257,860,810.20x = 69,983,941,153,736,640
  5. Step 5: Solve for x
    x = 69,983,941,153,736,640/257,860,810.20
  6. Step 6: Final answer
    x = 271,402,005.99

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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.