Home / 51,711,783.47-71,362,742.54-28,507,740.80

Finding the Fourth Proportional to 51,711,783.47, 71,362,742.54 and 28,507,740.80

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Solution

The fourth proportional to 51,711,783.47, 71,362,742.54 and 28,507,740.80 is: 39,340,947.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,711,783.47 : 71,362,742.54 = 28,507,740.80 : x
  2. Step 2: Convert to fraction form
    51,711,783.47/71,362,742.54 = 28,507,740.80/x
  3. Step 3: Cross multiply
    51,711,783.47x = 71,362,742.54 × 28,507,740.80
  4. Step 4: Simplify right side
    51,711,783.47x = 2,034,390,566,608,101.25
  5. Step 5: Solve for x
    x = 2,034,390,566,608,101.25/51,711,783.47
  6. Step 6: Final answer
    x = 39,340,947.66

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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.