Home / 20,142,815.08-30,223,153.14-10,555,914.28

Finding the Fourth Proportional to 20,142,815.08, 30,223,153.14 and 10,555,914.28

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Solution

The fourth proportional to 20,142,815.08, 30,223,153.14 and 10,555,914.28 is: 15,838,551.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,815.08 : 30,223,153.14 = 10,555,914.28 : x
  2. Step 2: Convert to fraction form
    20,142,815.08/30,223,153.14 = 10,555,914.28/x
  3. Step 3: Cross multiply
    20,142,815.08x = 30,223,153.14 × 10,555,914.28
  4. Step 4: Simplify right side
    20,142,815.08x = 319,033,013,817,152.81
  5. Step 5: Solve for x
    x = 319,033,013,817,152.81/20,142,815.08
  6. Step 6: Final answer
    x = 15,838,551.49

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1.5x scale

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.