Home / 20,232,307.70-30,348,461.55-18,106,543.70

Finding the Fourth Proportional to 20,232,307.70, 30,348,461.55 and 18,106,543.70

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Solution

The fourth proportional to 20,232,307.70, 30,348,461.55 and 18,106,543.70 is: 27,159,815.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232,307.70 : 30,348,461.55 = 18,106,543.70 : x
  2. Step 2: Convert to fraction form
    20,232,307.70/30,348,461.55 = 18,106,543.70/x
  3. Step 3: Cross multiply
    20,232,307.70x = 30,348,461.55 × 18,106,543.70
  4. Step 4: Simplify right side
    20,232,307.70x = 549,505,745,282,844.75
  5. Step 5: Solve for x
    x = 549,505,745,282,844.75/20,232,307.70
  6. Step 6: Final answer
    x = 27,159,815.55

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Similar ratio
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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.