Home / 28,128,769,135.65-38,816,275,885.56-16,697,826,601.11

Finding the Fourth Proportional to 28,128,769,135.65, 38,816,275,885.56 and 16,697,826,601.11

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Solution

The fourth proportional to 28,128,769,135.65, 38,816,275,885.56 and 16,697,826,601.11 is: 23,042,154,490.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,128,769,135.65 : 38,816,275,885.56 = 16,697,826,601.11 : x
  2. Step 2: Convert to fraction form
    28,128,769,135.65/38,816,275,885.56 = 16,697,826,601.11/x
  3. Step 3: Cross multiply
    28,128,769,135.65x = 38,816,275,885.56 × 16,697,826,601.11
  4. Step 4: Simplify right side
    28,128,769,135.65x = 648,147,444,037,928,353,792
  5. Step 5: Solve for x
    x = 648,147,444,037,928,353,792/28,128,769,135.65
  6. Step 6: Final answer
    x = 23,042,154,490.03

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Double scale
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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.