Home / 13,309,891,515.81-18,368,224,245.90-7,369,444,542.69

Finding the Fourth Proportional to 13,309,891,515.81, 18,368,224,245.90 and 7,369,444,542.69

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Solution

The fourth proportional to 13,309,891,515.81, 18,368,224,245.90 and 7,369,444,542.69 is: 10,170,151,256.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,891,515.81 : 18,368,224,245.90 = 7,369,444,542.69 : x
  2. Step 2: Convert to fraction form
    13,309,891,515.81/18,368,224,245.90 = 7,369,444,542.69/x
  3. Step 3: Cross multiply
    13,309,891,515.81x = 18,368,224,245.90 × 7,369,444,542.69
  4. Step 4: Simplify right side
    13,309,891,515.81x = 135,363,609,927,853,899,776
  5. Step 5: Solve for x
    x = 135,363,609,927,853,899,776/13,309,891,515.81
  6. Step 6: Final answer
    x = 10,170,151,256.84

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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.