Home / 20,160,011.70-30,240,017.55-18,406,256.40

Finding the Fourth Proportional to 20,160,011.70, 30,240,017.55 and 18,406,256.40

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Solution

The fourth proportional to 20,160,011.70, 30,240,017.55 and 18,406,256.40 is: 27,609,384.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,011.70 : 30,240,017.55 = 18,406,256.40 : x
  2. Step 2: Convert to fraction form
    20,160,011.70/30,240,017.55 = 18,406,256.40/x
  3. Step 3: Cross multiply
    20,160,011.70x = 30,240,017.55 × 18,406,256.40
  4. Step 4: Simplify right side
    20,160,011.70x = 556,605,516,565,799.81
  5. Step 5: Solve for x
    x = 556,605,516,565,799.81/20,160,011.70
  6. Step 6: Final answer
    x = 27,609,384.60

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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.