Home / 76,636,440-105,758,287.20-52,232,785.92

Finding the Fourth Proportional to 76,636,440, 105,758,287.20 and 52,232,785.92

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Solution

The fourth proportional to 76,636,440, 105,758,287.20 and 52,232,785.92 is: 72,081,244.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,636,440 : 105,758,287.20 = 52,232,785.92 : x
  2. Step 2: Convert to fraction form
    76,636,440/105,758,287.20 = 52,232,785.92/x
  3. Step 3: Cross multiply
    76,636,440x = 105,758,287.20 × 52,232,785.92
  4. Step 4: Simplify right side
    76,636,440x = 5,524,049,974,583,477
  5. Step 5: Solve for x
    x = 5,524,049,974,583,477/76,636,440
  6. Step 6: Final answer
    x = 72,081,244.57

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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.