Home / 253,602,000.30-380,403,000.45-81,084,441.90

Finding the Fourth Proportional to 253,602,000.30, 380,403,000.45 and 81,084,441.90

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Solution

The fourth proportional to 253,602,000.30, 380,403,000.45 and 81,084,441.90 is: 121,626,662.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,602,000.30 : 380,403,000.45 = 81,084,441.90 : x
  2. Step 2: Convert to fraction form
    253,602,000.30/380,403,000.45 = 81,084,441.90/x
  3. Step 3: Cross multiply
    253,602,000.30x = 380,403,000.45 × 81,084,441.90
  4. Step 4: Simplify right side
    253,602,000.30x = 30,844,764,988,573,700
  5. Step 5: Solve for x
    x = 30,844,764,988,573,700/253,602,000.30
  6. Step 6: Final answer
    x = 121,626,662.85

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1.5x scale

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.