Home / 455,866,070-629,025,596.76-257,555,206.92

Finding the Fourth Proportional to 455,866,070, 629,025,596.76 and 257,555,206.92

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Solution

The fourth proportional to 455,866,070, 629,025,596.76 and 257,555,206.92 is: 355,386,874.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,866,070 : 629,025,596.76 = 257,555,206.92 : x
  2. Step 2: Convert to fraction form
    455,866,070/629,025,596.76 = 257,555,206.92/x
  3. Step 3: Cross multiply
    455,866,070x = 629,025,596.76 × 257,555,206.92
  4. Step 4: Simplify right side
    455,866,070x = 162,008,817,731,498,272
  5. Step 5: Solve for x
    x = 162,008,817,731,498,272/455,866,070
  6. Step 6: Final answer
    x = 355,386,874.33

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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.