Home / 85,556,140.80-128,277,532.80-47,236,012.80

Finding the Fourth Proportional to 85,556,140.80, 128,277,532.80 and 47,236,012.80

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Solution

The fourth proportional to 85,556,140.80, 128,277,532.80 and 47,236,012.80 is: 70,822,726.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,556,140.80 : 128,277,532.80 = 47,236,012.80 : x
  2. Step 2: Convert to fraction form
    85,556,140.80/128,277,532.80 = 47,236,012.80/x
  3. Step 3: Cross multiply
    85,556,140.80x = 128,277,532.80 × 47,236,012.80
  4. Step 4: Simplify right side
    85,556,140.80x = 6,059,319,181,293,219
  5. Step 5: Solve for x
    x = 6,059,319,181,293,219/85,556,140.80
  6. Step 6: Final answer
    x = 70,822,726.75

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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.