Home / 18,537,287.40-27,805,931.10-12,868,583.40

Finding the Fourth Proportional to 18,537,287.40, 27,805,931.10 and 12,868,583.40

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Solution

The fourth proportional to 18,537,287.40, 27,805,931.10 and 12,868,583.40 is: 19,302,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,537,287.40 : 27,805,931.10 = 12,868,583.40 : x
  2. Step 2: Convert to fraction form
    18,537,287.40/27,805,931.10 = 12,868,583.40/x
  3. Step 3: Cross multiply
    18,537,287.40x = 27,805,931.10 × 12,868,583.40
  4. Step 4: Simplify right side
    18,537,287.40x = 357,822,943,375,003.75
  5. Step 5: Solve for x
    x = 357,822,943,375,003.75/18,537,287.40
  6. Step 6: Final answer
    x = 19,302,875.10

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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.