Home / 630,859,990,105.96-870,886,985,511.78-422,645,434,234.60

Finding the Fourth Proportional to 630,859,990,105.96, 870,886,985,511.78 and 422,645,434,234.60

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Solution

The fourth proportional to 630,859,990,105.96, 870,886,985,511.78 and 422,645,434,234.60 is: 583,451,818,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,859,990,105.96 : 870,886,985,511.78 = 422,645,434,234.60 : x
  2. Step 2: Convert to fraction form
    630,859,990,105.96/870,886,985,511.78 = 422,645,434,234.60/x
  3. Step 3: Cross multiply
    630,859,990,105.96x = 870,886,985,511.78 × 422,645,434,234.60
  4. Step 4: Simplify right side
    630,859,990,105.96x = 368,076,408,160,888,064,835,584
  5. Step 5: Solve for x
    x = 368,076,408,160,888,064,835,584/630,859,990,105.96
  6. Step 6: Final answer
    x = 583,451,818,047.72

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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.