Home / 105,585,347,721.12-145,708,537,845.12-57,413,045,761.44

Finding the Fourth Proportional to 105,585,347,721.12, 145,708,537,845.12 and 57,413,045,761.44

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Solution

The fourth proportional to 105,585,347,721.12, 145,708,537,845.12 and 57,413,045,761.44 is: 79,230,415,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,585,347,721.12 : 145,708,537,845.12 = 57,413,045,761.44 : x
  2. Step 2: Convert to fraction form
    105,585,347,721.12/145,708,537,845.12 = 57,413,045,761.44/x
  3. Step 3: Cross multiply
    105,585,347,721.12x = 145,708,537,845.12 × 57,413,045,761.44
  4. Step 4: Simplify right side
    105,585,347,721.12x = 8,365,570,951,134,386,847,744
  5. Step 5: Solve for x
    x = 8,365,570,951,134,386,847,744/105,585,347,721.12
  6. Step 6: Final answer
    x = 79,230,415,315.11

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1.5x scale

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.