Home / 20,160,030.70-30,240,046.05-18,406,275.40

Finding the Fourth Proportional to 20,160,030.70, 30,240,046.05 and 18,406,275.40

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Solution

The fourth proportional to 20,160,030.70, 30,240,046.05 and 18,406,275.40 is: 27,609,413.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,030.70 : 30,240,046.05 = 18,406,275.40 : x
  2. Step 2: Convert to fraction form
    20,160,030.70/30,240,046.05 = 18,406,275.40/x
  3. Step 3: Cross multiply
    20,160,030.70x = 30,240,046.05 × 18,406,275.40
  4. Step 4: Simplify right side
    20,160,030.70x = 556,606,615,704,982.12
  5. Step 5: Solve for x
    x = 556,606,615,704,982.12/20,160,030.70
  6. Step 6: Final answer
    x = 27,609,413.10

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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.