Home / 213,347,711.70-320,021,567.55-159,599,999.70

Finding the Fourth Proportional to 213,347,711.70, 320,021,567.55 and 159,599,999.70

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Solution

The fourth proportional to 213,347,711.70, 320,021,567.55 and 159,599,999.70 is: 239,399,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,347,711.70 : 320,021,567.55 = 159,599,999.70 : x
  2. Step 2: Convert to fraction form
    213,347,711.70/320,021,567.55 = 159,599,999.70/x
  3. Step 3: Cross multiply
    213,347,711.70x = 320,021,567.55 × 159,599,999.70
  4. Step 4: Simplify right side
    213,347,711.70x = 51,075,442,084,973,528
  5. Step 5: Solve for x
    x = 51,075,442,084,973,528/213,347,711.70
  6. Step 6: Final answer
    x = 239,399,999.55

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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.