Home / 208,068,299.84-287,131,965.46-112,696,435.86

Finding the Fourth Proportional to 208,068,299.84, 287,131,965.46 and 112,696,435.86

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Solution

The fourth proportional to 208,068,299.84, 287,131,965.46 and 112,696,435.86 is: 155,519,842.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,068,299.84 : 287,131,965.46 = 112,696,435.86 : x
  2. Step 2: Convert to fraction form
    208,068,299.84/287,131,965.46 = 112,696,435.86/x
  3. Step 3: Cross multiply
    208,068,299.84x = 287,131,965.46 × 112,696,435.86
  4. Step 4: Simplify right side
    208,068,299.84x = 32,358,749,127,460,140
  5. Step 5: Solve for x
    x = 32,358,749,127,460,140/208,068,299.84
  6. Step 6: Final answer
    x = 155,519,842.05

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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.