Home / 916,992,000.80-1,375,488,001.20-590,474,650.40

Finding the Fourth Proportional to 916,992,000.80, 1,375,488,001.20 and 590,474,650.40

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Solution

The fourth proportional to 916,992,000.80, 1,375,488,001.20 and 590,474,650.40 is: 885,711,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,992,000.80 : 1,375,488,001.20 = 590,474,650.40 : x
  2. Step 2: Convert to fraction form
    916,992,000.80/1,375,488,001.20 = 590,474,650.40/x
  3. Step 3: Cross multiply
    916,992,000.80x = 1,375,488,001.20 × 590,474,650.40
  4. Step 4: Simplify right side
    916,992,000.80x = 812,190,796,637,964,800
  5. Step 5: Solve for x
    x = 812,190,796,637,964,800/916,992,000.80
  6. Step 6: Final answer
    x = 885,711,975.60

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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.