Home / 156,988,415,554.56-216,642,911,389.92-85,703,045,578.56

Finding the Fourth Proportional to 156,988,415,554.56, 216,642,911,389.92 and 85,703,045,578.56

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Solution

The fourth proportional to 156,988,415,554.56, 216,642,911,389.92 and 85,703,045,578.56 is: 118,269,601,253.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,988,415,554.56 : 216,642,911,389.92 = 85,703,045,578.56 : x
  2. Step 2: Convert to fraction form
    156,988,415,554.56/216,642,911,389.92 = 85,703,045,578.56/x
  3. Step 3: Cross multiply
    156,988,415,554.56x = 216,642,911,389.92 × 85,703,045,578.56
  4. Step 4: Simplify right side
    156,988,415,554.56x = 18,566,957,309,122,249,228,288
  5. Step 5: Solve for x
    x = 18,566,957,309,122,249,228,288/156,988,415,554.56
  6. Step 6: Final answer
    x = 118,269,601,253.92

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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.