Home / 151,495,378,405.51-209,063,485,751.70-85,515,444,121.86

Finding the Fourth Proportional to 151,495,378,405.51, 209,063,485,751.70 and 85,515,444,121.86

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Solution

The fourth proportional to 151,495,378,405.51, 209,063,485,751.70 and 85,515,444,121.86 is: 118,011,235,866.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,495,378,405.51 : 209,063,485,751.70 = 85,515,444,121.86 : x
  2. Step 2: Convert to fraction form
    151,495,378,405.51/209,063,485,751.70 = 85,515,444,121.86/x
  3. Step 3: Cross multiply
    151,495,378,405.51x = 209,063,485,751.70 × 85,515,444,121.86
  4. Step 4: Simplify right side
    151,495,378,405.51x = 17,878,156,833,720,775,999,488
  5. Step 5: Solve for x
    x = 17,878,156,833,720,775,999,488/151,495,378,405.51
  6. Step 6: Final answer
    x = 118,011,235,866.66

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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.