Home / 10,211,065.20-15,316,597.80-9,431,618.40

Finding the Fourth Proportional to 10,211,065.20, 15,316,597.80 and 9,431,618.40

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Solution

The fourth proportional to 10,211,065.20, 15,316,597.80 and 9,431,618.40 is: 14,147,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211,065.20 : 15,316,597.80 = 9,431,618.40 : x
  2. Step 2: Convert to fraction form
    10,211,065.20/15,316,597.80 = 9,431,618.40/x
  3. Step 3: Cross multiply
    10,211,065.20x = 15,316,597.80 × 9,431,618.40
  4. Step 4: Simplify right side
    10,211,065.20x = 144,460,305,635,879.53
  5. Step 5: Solve for x
    x = 144,460,305,635,879.53/10,211,065.20
  6. Step 6: Final answer
    x = 14,147,427.60

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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.