Home / 77,492,874.38-106,940,166.65-42,685,457.18

Finding the Fourth Proportional to 77,492,874.38, 106,940,166.65 and 42,685,457.18

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Solution

The fourth proportional to 77,492,874.38, 106,940,166.65 and 42,685,457.18 is: 58,905,930.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,492,874.38 : 106,940,166.65 = 42,685,457.18 : x
  2. Step 2: Convert to fraction form
    77,492,874.38/106,940,166.65 = 42,685,457.18/x
  3. Step 3: Cross multiply
    77,492,874.38x = 106,940,166.65 × 42,685,457.18
  4. Step 4: Simplify right side
    77,492,874.38x = 4,564,789,903,612,510
  5. Step 5: Solve for x
    x = 4,564,789,903,612,510/77,492,874.38
  6. Step 6: Final answer
    x = 58,905,930.91

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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.