Home / 771,976,696.60-1,065,336,070.08-419,552,712.82

Finding the Fourth Proportional to 771,976,696.60, 1,065,336,070.08 and 419,552,712.82

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Solution

The fourth proportional to 771,976,696.60, 1,065,336,070.08 and 419,552,712.82 is: 578,987,215.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,976,696.60 : 1,065,336,070.08 = 419,552,712.82 : x
  2. Step 2: Convert to fraction form
    771,976,696.60/1,065,336,070.08 = 419,552,712.82/x
  3. Step 3: Cross multiply
    771,976,696.60x = 1,065,336,070.08 × 419,552,712.82
  4. Step 4: Simplify right side
    771,976,696.60x = 446,964,638,267,061,632
  5. Step 5: Solve for x
    x = 446,964,638,267,061,632/771,976,696.60
  6. Step 6: Final answer
    x = 578,987,215.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.