Home / 15,636,740.62-21,578,687.58-8,761,271.86

Finding the Fourth Proportional to 15,636,740.62, 21,578,687.58 and 8,761,271.86

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Solution

The fourth proportional to 15,636,740.62, 21,578,687.58 and 8,761,271.86 is: 12,090,547.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636,740.62 : 21,578,687.58 = 8,761,271.86 : x
  2. Step 2: Convert to fraction form
    15,636,740.62/21,578,687.58 = 8,761,271.86/x
  3. Step 3: Cross multiply
    15,636,740.62x = 21,578,687.58 × 8,761,271.86
  4. Step 4: Simplify right side
    15,636,740.62x = 189,056,748,270,385.47
  5. Step 5: Solve for x
    x = 189,056,748,270,385.47/15,636,740.62
  6. Step 6: Final answer
    x = 12,090,547.06

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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.