Home / 636,650,880.86-878,569,216.38-358,191,740.06

Finding the Fourth Proportional to 636,650,880.86, 878,569,216.38 and 358,191,740.06

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Solution

The fourth proportional to 636,650,880.86, 878,569,216.38 and 358,191,740.06 is: 494,299,538.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,650,880.86 : 878,569,216.38 = 358,191,740.06 : x
  2. Step 2: Convert to fraction form
    636,650,880.86/878,569,216.38 = 358,191,740.06/x
  3. Step 3: Cross multiply
    636,650,880.86x = 878,569,216.38 × 358,191,740.06
  4. Step 4: Simplify right side
    636,650,880.86x = 314,696,236,378,302,848
  5. Step 5: Solve for x
    x = 314,696,236,378,302,848/636,650,880.86
  6. Step 6: Final answer
    x = 494,299,538.16

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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.