Home / 257,860,870.20-385,940,999.70-181,333,366.20

Finding the Fourth Proportional to 257,860,870.20, 385,940,999.70 and 181,333,366.20

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Solution

The fourth proportional to 257,860,870.20, 385,940,999.70 and 181,333,366.20 is: 271,402,095.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,860,870.20 : 385,940,999.70 = 181,333,366.20 : x
  2. Step 2: Convert to fraction form
    257,860,870.20/385,940,999.70 = 181,333,366.20/x
  3. Step 3: Cross multiply
    257,860,870.20x = 385,940,999.70 × 181,333,366.20
  4. Step 4: Simplify right side
    257,860,870.20x = 69,983,980,630,194,184
  5. Step 5: Solve for x
    x = 69,983,980,630,194,184/257,860,870.20
  6. Step 6: Final answer
    x = 271,402,095.93

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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.