Home / 19,105,488.84-28,631,719.46-8,705,291.18

Finding the Fourth Proportional to 19,105,488.84, 28,631,719.46 and 8,705,291.18

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Solution

The fourth proportional to 19,105,488.84, 28,631,719.46 and 8,705,291.18 is: 13,045,855.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105,488.84 : 28,631,719.46 = 8,705,291.18 : x
  2. Step 2: Convert to fraction form
    19,105,488.84/28,631,719.46 = 8,705,291.18/x
  3. Step 3: Cross multiply
    19,105,488.84x = 28,631,719.46 × 8,705,291.18
  4. Step 4: Simplify right side
    19,105,488.84x = 249,247,454,883,372.38
  5. Step 5: Solve for x
    x = 249,247,454,883,372.38/19,105,488.84
  6. Step 6: Final answer
    x = 13,045,855.93

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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.