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Finding the Fourth Proportional to 121,310,291.40, 181,965,437.10 and 121,310,291.40

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Solution

The fourth proportional to 121,310,291.40, 181,965,437.10 and 121,310,291.40 is: 181,965,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,310,291.40 : 181,965,437.10 = 121,310,291.40 : x
  2. Step 2: Convert to fraction form
    121,310,291.40/181,965,437.10 = 121,310,291.40/x
  3. Step 3: Cross multiply
    121,310,291.40x = 181,965,437.10 × 121,310,291.40
  4. Step 4: Simplify right side
    121,310,291.40x = 22,074,280,199,329,372
  5. Step 5: Solve for x
    x = 22,074,280,199,329,372/121,310,291.40
  6. Step 6: Final answer
    x = 181,965,437.10

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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.