Home / 636,650,874.66-878,569,207.80-358,191,733.92

Finding the Fourth Proportional to 636,650,874.66, 878,569,207.80 and 358,191,733.92

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Solution

The fourth proportional to 636,650,874.66, 878,569,207.80 and 358,191,733.92 is: 494,299,529.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,650,874.66 : 878,569,207.80 = 358,191,733.92 : x
  2. Step 2: Convert to fraction form
    636,650,874.66/878,569,207.80 = 358,191,733.92/x
  3. Step 3: Cross multiply
    636,650,874.66x = 878,569,207.80 × 358,191,733.92
  4. Step 4: Simplify right side
    636,650,874.66x = 314,696,227,910,602,816
  5. Step 5: Solve for x
    x = 314,696,227,910,602,816/636,650,874.66
  6. Step 6: Final answer
    x = 494,299,529.67

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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.