Home / 85,385,261,885.69-128,092,292,075.76-28,711,652,879.63

Finding the Fourth Proportional to 85,385,261,885.69, 128,092,292,075.76 and 28,711,652,879.63

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Solution

The fourth proportional to 85,385,261,885.69, 128,092,292,075.76 and 28,711,652,879.63 is: 43,072,321,211.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,385,261,885.69 : 128,092,292,075.76 = 28,711,652,879.63 : x
  2. Step 2: Convert to fraction form
    85,385,261,885.69/128,092,292,075.76 = 28,711,652,879.63/x
  3. Step 3: Cross multiply
    85,385,261,885.69x = 128,092,292,075.76 × 28,711,652,879.63
  4. Step 4: Simplify right side
    85,385,261,885.69x = 3,677,741,426,635,401,854,976
  5. Step 5: Solve for x
    x = 3,677,741,426,635,401,854,976/85,385,261,885.69
  6. Step 6: Final answer
    x = 43,072,321,211.11

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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.