Home / 18,718,316,649.76-28,077,473,270.04-8,237,533,066.60

Finding the Fourth Proportional to 18,718,316,649.76, 28,077,473,270.04 and 8,237,533,066.60

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Solution

The fourth proportional to 18,718,316,649.76, 28,077,473,270.04 and 8,237,533,066.60 is: 12,356,298,849.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718,316,649.76 : 28,077,473,270.04 = 8,237,533,066.60 : x
  2. Step 2: Convert to fraction form
    18,718,316,649.76/28,077,473,270.04 = 8,237,533,066.60/x
  3. Step 3: Cross multiply
    18,718,316,649.76x = 28,077,473,270.04 × 8,237,533,066.60
  4. Step 4: Simplify right side
    18,718,316,649.76x = 231,289,114,488,532,140,032
  5. Step 5: Solve for x
    x = 231,289,114,488,532,140,032/18,718,316,649.76
  6. Step 6: Final answer
    x = 12,356,298,849.74

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Double scale
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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.