Home / 13,338,284.18-18,406,834.11-7,226,712.68

Finding the Fourth Proportional to 13,338,284.18, 18,406,834.11 and 7,226,712.68

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Solution

The fourth proportional to 13,338,284.18, 18,406,834.11 and 7,226,712.68 is: 9,972,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338,284.18 : 18,406,834.11 = 7,226,712.68 : x
  2. Step 2: Convert to fraction form
    13,338,284.18/18,406,834.11 = 7,226,712.68/x
  3. Step 3: Cross multiply
    13,338,284.18x = 18,406,834.11 × 7,226,712.68
  4. Step 4: Simplify right side
    13,338,284.18x = 133,020,901,369,359.34
  5. Step 5: Solve for x
    x = 133,020,901,369,359.34/13,338,284.18
  6. Step 6: Final answer
    x = 9,972,864.55

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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.