Home / 1,187,158,609.94-1,638,272,846.90-658,517,123.03

Finding the Fourth Proportional to 1,187,158,609.94, 1,638,272,846.90 and 658,517,123.03

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Solution

The fourth proportional to 1,187,158,609.94, 1,638,272,846.90 and 658,517,123.03 is: 908,750,282.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,158,609.94 : 1,638,272,846.90 = 658,517,123.03 : x
  2. Step 2: Convert to fraction form
    1,187,158,609.94/1,638,272,846.90 = 658,517,123.03/x
  3. Step 3: Cross multiply
    1,187,158,609.94x = 1,638,272,846.90 × 658,517,123.03
  4. Step 4: Simplify right side
    1,187,158,609.94x = 1,078,830,721,872,210,432
  5. Step 5: Solve for x
    x = 1,078,830,721,872,210,432/1,187,158,609.94
  6. Step 6: Final answer
    x = 908,750,282.27

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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.