Home / 13,918,684.61-19,207,280.12-7,724,001.65

Finding the Fourth Proportional to 13,918,684.61, 19,207,280.12 and 7,724,001.65

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Solution

The fourth proportional to 13,918,684.61, 19,207,280.12 and 7,724,001.65 is: 10,658,842.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918,684.61 : 19,207,280.12 = 7,724,001.65 : x
  2. Step 2: Convert to fraction form
    13,918,684.61/19,207,280.12 = 7,724,001.65/x
  3. Step 3: Cross multiply
    13,918,684.61x = 19,207,280.12 × 7,724,001.65
  4. Step 4: Simplify right side
    13,918,684.61x = 148,357,063,204,235.78
  5. Step 5: Solve for x
    x = 148,357,063,204,235.78/13,918,684.61
  6. Step 6: Final answer
    x = 10,658,842.22

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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.