Home / 866,142,499.32-1,298,694,909.06-275,677,689.51

Finding the Fourth Proportional to 866,142,499.32, 1,298,694,909.06 and 275,677,689.51

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Solution

The fourth proportional to 866,142,499.32, 1,298,694,909.06 and 275,677,689.51 is: 413,351,396.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,142,499.32 : 1,298,694,909.06 = 275,677,689.51 : x
  2. Step 2: Convert to fraction form
    866,142,499.32/1,298,694,909.06 = 275,677,689.51/x
  3. Step 3: Cross multiply
    866,142,499.32x = 1,298,694,909.06 × 275,677,689.51
  4. Step 4: Simplify right side
    866,142,499.32x = 358,021,211,908,060,352
  5. Step 5: Solve for x
    x = 358,021,211,908,060,352/866,142,499.32
  6. Step 6: Final answer
    x = 413,351,396.78

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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.