Home / 858,808,968,007.20-1,288,213,452,010.80-293,484,990,458.40

Finding the Fourth Proportional to 858,808,968,007.20, 1,288,213,452,010.80 and 293,484,990,458.40

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Solution

The fourth proportional to 858,808,968,007.20, 1,288,213,452,010.80 and 293,484,990,458.40 is: 440,227,485,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,808,968,007.20 : 1,288,213,452,010.80 = 293,484,990,458.40 : x
  2. Step 2: Convert to fraction form
    858,808,968,007.20/1,288,213,452,010.80 = 293,484,990,458.40/x
  3. Step 3: Cross multiply
    858,808,968,007.20x = 1,288,213,452,010.80 × 293,484,990,458.40
  4. Step 4: Simplify right side
    858,808,968,007.20x = 378,071,312,671,772,229,238,784
  5. Step 5: Solve for x
    x = 378,071,312,671,772,229,238,784/858,808,968,007.20
  6. Step 6: Final answer
    x = 440,227,485,687.60

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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.