Home / 938,658,081.75-1,295,413,624.75-620,565,669.83

Finding the Fourth Proportional to 938,658,081.75, 1,295,413,624.75 and 620,565,669.83

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Solution

The fourth proportional to 938,658,081.75, 1,295,413,624.75 and 620,565,669.83 is: 856,423,909.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,658,081.75 : 1,295,413,624.75 = 620,565,669.83 : x
  2. Step 2: Convert to fraction form
    938,658,081.75/1,295,413,624.75 = 620,565,669.83/x
  3. Step 3: Cross multiply
    938,658,081.75x = 1,295,413,624.75 × 620,565,669.83
  4. Step 4: Simplify right side
    938,658,081.75x = 803,889,223,752,758,144
  5. Step 5: Solve for x
    x = 803,889,223,752,758,144/938,658,081.75
  6. Step 6: Final answer
    x = 856,423,909.18

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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.