Home / 12,688,292.46-17,509,390.55-7,181,549.08

Finding the Fourth Proportional to 12,688,292.46, 17,509,390.55 and 7,181,549.08

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Solution

The fourth proportional to 12,688,292.46, 17,509,390.55 and 7,181,549.08 is: 9,910,281.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,292.46 : 17,509,390.55 = 7,181,549.08 : x
  2. Step 2: Convert to fraction form
    12,688,292.46/17,509,390.55 = 7,181,549.08/x
  3. Step 3: Cross multiply
    12,688,292.46x = 17,509,390.55 × 7,181,549.08
  4. Step 4: Simplify right side
    12,688,292.46x = 125,744,547,641,453.09
  5. Step 5: Solve for x
    x = 125,744,547,641,453.09/12,688,292.46
  6. Step 6: Final answer
    x = 9,910,281.31

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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.