Home / 20,636,875.64-30,958,302.80-7,681,949.48

Finding the Fourth Proportional to 20,636,875.64, 30,958,302.80 and 7,681,949.48

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Solution

The fourth proportional to 20,636,875.64, 30,958,302.80 and 7,681,949.48 is: 11,524,036.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,636,875.64 : 30,958,302.80 = 7,681,949.48 : x
  2. Step 2: Convert to fraction form
    20,636,875.64/30,958,302.80 = 7,681,949.48/x
  3. Step 3: Cross multiply
    20,636,875.64x = 30,958,302.80 × 7,681,949.48
  4. Step 4: Simplify right side
    20,636,875.64x = 237,820,118,192,743.16
  5. Step 5: Solve for x
    x = 237,820,118,192,743.16/20,636,875.64
  6. Step 6: Final answer
    x = 11,524,036.99

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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.