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Finding the Fourth Proportional to 85,110,779.10, 127,666,168.65 and 85,110,779.10

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Solution

The fourth proportional to 85,110,779.10, 127,666,168.65 and 85,110,779.10 is: 127,666,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,110,779.10 : 127,666,168.65 = 85,110,779.10 : x
  2. Step 2: Convert to fraction form
    85,110,779.10/127,666,168.65 = 85,110,779.10/x
  3. Step 3: Cross multiply
    85,110,779.10x = 127,666,168.65 × 85,110,779.10
  4. Step 4: Simplify right side
    85,110,779.10x = 10,865,767,078,513,494
  5. Step 5: Solve for x
    x = 10,865,767,078,513,494/85,110,779.10
  6. Step 6: Final answer
    x = 127,666,168.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.