Home / 20,399,411.84-28,152,222.72-11,579,483.84

Finding the Fourth Proportional to 20,399,411.84, 28,152,222.72 and 11,579,483.84

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Solution

The fourth proportional to 20,399,411.84, 28,152,222.72 and 11,579,483.84 is: 15,980,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,399,411.84 : 28,152,222.72 = 11,579,483.84 : x
  2. Step 2: Convert to fraction form
    20,399,411.84/28,152,222.72 = 11,579,483.84/x
  3. Step 3: Cross multiply
    20,399,411.84x = 28,152,222.72 × 11,579,483.84
  4. Step 4: Simplify right side
    20,399,411.84x = 325,988,208,046,320.81
  5. Step 5: Solve for x
    x = 325,988,208,046,320.81/20,399,411.84
  6. Step 6: Final answer
    x = 15,980,274.85

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1.5x scale

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.