Home / 20,805,749,155.65-28,711,933,836.60-11,290,300,905.09

Finding the Fourth Proportional to 20,805,749,155.65, 28,711,933,836.60 and 11,290,300,905.09

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Solution

The fourth proportional to 20,805,749,155.65, 28,711,933,836.60 and 11,290,300,905.09 is: 15,580,615,250.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,805,749,155.65 : 28,711,933,836.60 = 11,290,300,905.09 : x
  2. Step 2: Convert to fraction form
    20,805,749,155.65/28,711,933,836.60 = 11,290,300,905.09/x
  3. Step 3: Cross multiply
    20,805,749,155.65x = 28,711,933,836.60 × 11,290,300,905.09
  4. Step 4: Simplify right side
    20,805,749,155.65x = 324,166,372,582,249,136,128
  5. Step 5: Solve for x
    x = 324,166,372,582,249,136,128/20,805,749,155.65
  6. Step 6: Final answer
    x = 15,580,615,250.00

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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.