Home / 15,636,740.12-21,578,686.89-8,761,271.36

Finding the Fourth Proportional to 15,636,740.12, 21,578,686.89 and 8,761,271.36

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Solution

The fourth proportional to 15,636,740.12, 21,578,686.89 and 8,761,271.36 is: 12,090,546.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636,740.12 : 21,578,686.89 = 8,761,271.36 : x
  2. Step 2: Convert to fraction form
    15,636,740.12/21,578,686.89 = 8,761,271.36/x
  3. Step 3: Cross multiply
    15,636,740.12x = 21,578,686.89 × 8,761,271.36
  4. Step 4: Simplify right side
    15,636,740.12x = 189,056,731,435,764.47
  5. Step 5: Solve for x
    x = 189,056,731,435,764.47/15,636,740.12
  6. Step 6: Final answer
    x = 12,090,546.37

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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.